These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fan-Disliked Explanation: The Elite who nearly killed John at the end of The Package was hinted to be the future ally the Arbiter because the subtitles referred to him as "Thel". However, when fans pointed out that Thel 'Vadamee was already a Zealot (as opposed to a lowly Major) during his first fight against a Spartan in Halo: The Cole Protocol, the character was changed to be another random Elite named Thel 'Lodamee. Now the canon fit together again, but the irony was lost.
Fridge Brilliance: The collection is titled Halo Legends, and particularly in the case of The Duel, they mean it. Just as the legends of King Arthur are based (loosely) on real events and people with plenty of exaggeration and anachronism, so too would the story of the first Arbiter be conflated to an epic tale of betrayal that perhaps kind of resembles historical events if you look at it funny—but screw it, it's an entertaining way to tell the tale, no?