In "A Wallop for All Seasons", Junko is summoned back to Terra Wallop so he can sell underwear (er, frilly delicate whatnots) where it turns out that they have an alliance with the Cyclonians. Junko's role as a Storm Hawk squaddie is well known at this point, so why bring him back? To get him out of the way! By having Junko's destiny overridden by the choice of the clan, it forces Junko to either choose the Storm Hawks or his people, a choice that he did not seem capable of making and thus would default to the latter. It gets Junko out of the way without having to kill him, giving both him and the Cyclonians what they want short of taking Junko prisoner in Cyclonia. Then Junkochallenges him in the Ritual of Strength, undoing the whole plan and causing what he tried to avoid.
Many aspects of the Code held by the Rex Guardians at first seem arbitrary and pointless, dogmatically followed for the sake of following them. Yet a closer examination reveals that many of the aspects of the Code invoked against the Storm Hawks have practical applications. To go through the challenges over the Phoenix Crystal...
The challenge itself serves as a form of Trial by Combat, allowing both squadrons even ground to press their claim. This means that when a dispute happens, two squadrons won't fight each other in open warfare to determine which cause is in the right, but rather a series of contests.
In the first challenge, Finn defaces the Rex Guardians' insignia which also represents all of Terra Rex. Essentially, Finn pissed on the American flag during the middle of the national anthem at an international hockey game. Given that these challenges were meant to avoid Sky Knights killing each other in open combat over disputes, of course the Code would be against such displays.
The different material for the jacket clasp is admittedly petty, but in the spirit of competition meant to be fair arbitration having both competitors in the same gear ensures that the losing party cannot disqualify the challenge grounds that the other party had a uniform better suited for the display of technique.
Finally, the duel, where Harrier reams Aerrow for abandoning his ride and not wearing dueling armor. The latter was likely a matter of safety as this was a duel with live weapons, while the later goes into how skimmers are the Sky Knight's key asset as most combat is airborne. Aerrow essentially abandoned what made him a major asset and not some grunt on the ground for a dubious tactical advantage, which if he did not have Radarr to pilot it back down would mean he lost his ride doing that. Pyrrhic Victory at its finest.
However even with the above, the Rex Guardians also show themselves to disrespect the Code in an even more severe way than any of the Storm Hawks' antics: they hold it as dogma while ignoring the original purpose. In particular, the second challenge displays it perfectly: the Rex Guardian who participates in that challenge doesn't even do anything. He just has squires do it for him. Effectively, he declared that maintaining the very equipment that makes him useful in the battlefield is beneath him. Essentially, the Rex Guardians obsess over the letter of it and follow it in that sense, while the Storm Hawks (other than Finn's stunt with defacing the Rex Guardian's insignia) tended to live up to the spirit of it. Thus, what once made Terra Rex the origin of the Sky Knights has become its own downfall.
Has anyone ever stopped and considered the fate of the Talons that get shot down by the Storm Hawks? Sure, they have parachutes to stop them from getting killed by the fall, but they're useless when you take into account that their just floating down into the Wastelands, where they are likely to meet a gruesome, fiery death anyway.
Even if the lava and wildlife don't kill them, they have no known means of getting out with their rides destroyed, their superiors could probably care less about sending a rescue party, and even if they're lucky enough to land on a terra, there's no guarantee it'll be hospitable. If they get hit, they're pretty much screwed.
Most of the Cyclonians we see keep coming back, though. The easiest one to recognize is the guy with the mustache. He's in almost every group of Cyclonians. Also, Ravess's violin player sidekick. He always gets shot down.
There's no reason to believe these guys are the same guys. Mustaches are common in the Real World, in Cyclonia they may even be some kind of standard for members of the officer class, the way noblemen used to carry dueling swords as much to match their friends' outfits than to actually fight anyone. Also, Cyclonia is a megacity built into the side of a volcano, I'm pretty sure their population is large enough to have more than ONE violin player...assuming he's actually playing and its not some recording or something. Ravess could just be weird that way. Weird and hot and evil.
If you think about it economically the Cyclonians have a good reason to rescue their own soldiers. Mainly it is more expensive to train a soldier than to rescue one, especially training the non commissioned and commissioned officers.
Though given the type of world they live in, it's likely that soldiers and sky knights receive Wasteland Wilderness Survival Training, so that they can survive in the area that makes up most of the planet.
The Take My Hand scene. Yeah, Repton was an Ungrateful Bastard and tried to stab the guy who tried to save him but Stork just saw the guy he tried to rescue fall to his death.Up close and personal. That's probably gonna come back to haunt him.
Speaking of Repton... he quite blatantly talks about putting Starling in the night's soup. He's killed at least a dozen Sky Knight squadrons... what happened to the corpses? One of Starling's wingmen may very well have ended up Repton's dinner after that battle.