I really hope that things like Jade, for which I had to replay half the game, will not happen again. Although I have a suspicion that the decision to take the restaurant will bite me in the ass.
The game will be in development for a long time, we will be very lucky if it is finished before 2035. I think most players will start over again more than once just for fun. Maybe my relationship with Zoey will be ruined in episode 15 because of the wrong decision I made in episode 2. So what? The worst that could happen is that I have to start over, but that's not a big deal because I love this game.
I'm probably in the minority, but I don't believe that the route where the player fucked Jade and started dating Sage is doomed to fail. Players couldn't know that she was Sage's mother. I think the player should be able to correct mistakes made without malicious intent.
Same with the restaurant. In a good game, the choices have to be balanced. If the restaurant takes a lot in the future (like Sage ending any relationship with the MC), then it should give a lot. But it doesn't give much. Just a few low-quality sex scenes. Hell, it's not even needed for Quinn's route. And the restaurant completely loses its purpose in season 3, because now the MC can get any girl for free.
If the player is going to get a harsh punishment for the restaurant, it will just lead to everyone fixing their saves and always refusing it. I don't think DPC wants the game to have "dead" choices where everyone always chooses the same thing.