I personally file it under No True Scotsman fallacy.
Bundling response to this and a few up cause I am way too screwed over to get this editing beyond that. But y'all seem to have got the wrong impression. I wasn't trying to point out folks saying X is non-christian, I was talking about religious affiliation not being mentioned
at all.Like, I know what causes it (the religion in question is normal/default so people just don't think to mention it, along those lines), but it's still a thing. Oddly, I'm not sure if muslim majority countries are as bad about it, since many of their conflicts are sectarian to some degree. Probably the closest English language off the cuff check I can think of in recent history was the Troubles, over in the UK.
... just realized that would probably make a neat sociology study, though. Check references and media mentions and whatnot, see what sort of characteristics are highlighted and how much/if they differ based on nature of conflict. Most bonus points if you're able to figure out a good way to track that in general conversation, too. See what it's actually doing to the society's methods of communication.
E: Though bloody hell, I'm starting to catch up with the sessions hearing, and at least a good chunk of the initial reactions are basically "holy shit sessions what are you doing". Anyone been paying attention to that?