There is still very basic stuff that, honestly probably should have been prioritized over other sideline attractions that have been added.
The game starts out and leads you to believe that the main point of the game is to punish the students in the game's unique punishment mode in order to modify their behavior (and in a sense level those characters up to unlock new events, interactions, etc.)
However, that mode is still only in place for a handful of the characters, and even the main characters where it is more built out, all have some kind of limitations or things that haven't been completed yet. Some characters now have the punishment mode but it's not the full/real punishment mode yet.
I think the foundation needs to be fully built before the kitchen gets remodeled but this is a trap a lot of devs fall into unfortunately.