I don't think anyone disputes the idea of a choice in theory, but rather its history of being applied in this game. Don't get me wrong, I do hope it turns out to be brilliant this time because, in my opinion, so far, every time he presented a choice, what followed ranged between mediocre and awful.
When comparing both paths of the Nodoka's blackmail, if Yumi stormed out then the following events barely make sense. If Kirin didn't blackmail Ayane, you lose Ayane fighting back and Kirin actually being human trash instead of just talking about it. If Akira was a bad homie, then the game just forcefully brings it into a stalemate between the two of them anyway, after you miss a bunch of stuff.
And it's always about missing. I have stated this before, you cannot make a good branching narrative on a game where branches only ever go one way. Io's third event is supposed to happen - and if one chooses to "miss" it then her eventual development will either not make as much sense as it should have, or there will barely be any development either way in order to maintain narrative cohesion.
That's the point I think most people are making. It's a worry about where this will go from here, rather than what happened right now.