Fun fact about Arata's whole affair: Infermon is the Digimon you need if you want to get Beelzemon. Beelzemon is the Demon Lord of Gluttony, aka excessive consumption and often associated with over-eating. Beelzemon is also the Digimon who gets owned by Gallantmon in Tamers. And who goes on a rampage trying to gain tons of power (just like Beelzemon in Tamers, since power is what comes from Digimon "eating" in-universe), allows himself to be overcome by Eaters in the process, and ends up consuming Gallantmon?Arata doesn't end up getting a Beelzemon himself, but it's kind of fitting that way, too, because he's been purified from the Eaters corruption and is going towards his proper path again instead of turning into a Demon Lord of Gluttony.
On a similar note is Arata and Nokia ending up with the strongest characters of Our War Game. Nokia's strength is being able to bring lots of people together, an event only Omnimon's creation entailed thus far in the franchise and ends up tying nicely into how here they still are a combination of her "Courage" and "Friendship". Arata is a highly skilled Playful Hacker who ends up getting corrupted by the Eaters, much like that Keramon who was said to have been infected by a virus before its hatching which caused its own gluttonous behavior and made how they were "playful" far more dangerous.
Keramon's entire line still being "Free" digimon in this game, despite being a Dark digimon and associated with viruses due to the movie's example, may be seen as reflective on how Arata's hacking (something often seen as being morally "dark" by it's own nature too) can allow him to bypasses conventional rules, as this means part of the game's elemental Rock–Paper–Scissors can't apply to them. In the case of Diaboromon the lack of being a Virus is also a positive reflection of Arata recovering after being infected by the Eaters made him power obsessed.
The fact that your maximum party size is eleven Digimon isn't as arbitrary a number as it might appear. If you include the Player Character (who is themself, technically, a digital entity) there are a total of 12 members, all working under Kyouko/Alphamon. Meaning that the Kuremi Detective Agency has 13 members. Sound familiar? With all the fracturing and infighting going on among the Royal Knights, it's not surprising that Alphamon would decide to try recruiting a back-up team to deal with the Eater crisis.
Later in chapter 18 when you're seeing the main characters as children in the digital world, they all approach younger versions of what would later become their partners. Not only does Nokia meet Agumon and Gabumon, but Yuuko is lined up close to Botamon (which becomes her Gaiomon later), Yuugo is lined up with Pabumon (which becomes his avatar's Machinedramon), and Arata is lined up next to Kuramon (which becomes his Diaboromon).
Aiba's mother being a journalist initially seems like it's just a convenient reason for her to be absent and unaware of the Digimon situation. However, it actually explains how and why Aiba would've been part of the first EDEN test, when it was a closed beta the public shouldn't have known about. Media would naturally be among the first to learn of it, and would have likely been invited to attend.
Fridge Horror
There's some real concerns when it comes to Ami's/Takumi's condition: Their mother, Yukino, is working abroad and away from Japan, leaving their only line of communication being the occasional chat message on the Digi-Line. When Ami/Takumi become afflicted with EDEN Syndrome, Kyoko manages to use some cyber sleuth deception to keep their mother from finding out, but the fact still remains that now their only child is in an effectively permanent coma and they are none the wiser. The tone of Yukino's messages become anxious when Tokyo is besieged by the Royal Knights, making it clear she is worried about Ami/Takumi, and eventually manages to finish her work early and return home. However, the issue is that at this point her child is still in a coma, making it a very real risk that Yukino could return home to find Ami/Takumi completely comatose and clinging to life in a hospital bed. And no, the ending doesn't fix it. Thanks to the Cosmic Retcon, it was changed so that all the children involved instead just went into a coma following the EDEN Beta incident, meaning now Yukino's only son/daughter was in a coma for eight years. And when the other kids finally do wake up, Ami/Takumi doesn't until several weeks later.
Crosses over into Fridge Tear Jerker too, but there's a heavy implication that by the end of the game, the "original" Aiba is gone. The fragments Alphamon found were little more than pieces of scrap data that happened to cling together a little longer than the rest, but the remaining gaps had to be filled by using the memories of Aiba's partner Digimon, essentially creating a patchwork copy that, while close enough that no one seems to be able to tell the difference, still isn't the original.
Fridge Logic
The whole plan to save the Digital World by eliminating humanity would just result in total destruction for everyone. Since the Digital World is an alternate reality that exists within the World Wide Web, destroying the infrastructure and technology that makes it possible would result in the Digital World being destroyed in the process. Of course, this applies to the othertimes that King Drasil declared war on humanity.
