This thread really throws into relief my confusion about what the Remake is going for with its Compilation references. Like, I get that even mentioning something in passing is enough to drive fans into an orgy of declaring that this or that must therefore be canon. But I also know how developers/creators tend to see these things. They've kept to morsels and breadcrumbs when the Remake presents ample opportunities to go all-in on Compilation content.
The subject of the mutability of canon relative to how seriously fans take it could keep me typing all day, but it intrigues me that the Remake kept the Compilation nebulous in places where it might've gone specific. So far, we've mostly had stuff that falls between plausibly deniable Easter egg (S and G cells, for instance) and something that could be a Compilation reference but could also just be seen as elaborating VII's plot (a larger Avalanche, labs under the slums). It's sort of like the "Final Fantasy X is definitely a prequel to VII" debate but, like, internally. I'd describe their approach so far as "cake and eat it" territory.
That alone is enough to make me wonder about Genesis and the entire raft of Compilation content going forward. I assume they'll get bolder about the Compilation as they move deeper into the Remake, but if they keep on their current trajectory, we might hear someone repeat an urban legend about one of Sephiroth's contemporaries and that'll be that. And I wouldn't hold my breath if I wanted to declare the entire Compilation canon to the Remake per se (I mean, there are already a ton of retcons to VII's world, for starters).