Yeah, that's the part I don't really get. People are just accepting the idea that ffvii is too massive to be one game but I don't really see why compared to other games.
Not to mention the ideas that ffvii is way too big to be one game alongside the idea that they're going to add so much content to the game that it'll be three full length games kind of cancel each other out...
Like, don't get me wrong, it's a big project, but I don't see why it's so beyond the scope of, like, every other rpg in the last five years.
I'll try and give a simple explanation from my understanding (even though my better judgement tells me to steer clear from FF threads in general).
When they say the game is "big" they are not referring to the content and the amount of hours you take to experience everything... They're talking about everything the game has and does. It's too much for one game today.
Yeah, TW3 lasts longer than that. Yeah, MMOs are bigger than that, but no game is on the "level" of FFVII. The sheer variety in its visuals and scope. Every set piece is a minigame, every city is wildly different (not to mention dungeons), and there are insane amounts of things that can be missed that are on the same level of quality as the main story.
It would probably be all feasible if the game looked like FFXII or something, but it looks like FFXV, a game that is literally undergoing cuts as we speak, because the original vision was too much.
It's not about the content itself, it's about the scope and variety of the content.
That's also where the "game is too big for one, but we're adding more content" comes from. They'll add more content to a limited scope in each entry. That is very much possible and should definitely happen.
And of course, them saying it's too much for one game, that's probably very true. Now, if the episodes that come out are super short and they were full of shit saying that they were making more content for the game to make them all "full sized", then that's another matter entirely.