Why did DPC chooses "School Setting" for his second game ?
I think that the main reason is probably the higher chances to make lewd scenes, and it would fit in the story perfectly. A horny freshman with a big club fucking around like a hound dog with teachers, lesbian couple, prostitutes restaurant, strip club girls... it's not shocking or surrealist. Either people (25+ years) had memories about college debauchery nor, younger ones wanting to live that (in same time going to college)
So, it fits perfectly, because most people went to college/ high school, so they have a background related to this topic.
Imagine, the setting is about a young doctor in the hospital, or a writer working for a journal, fewer people will relate to it. (like for acting lessons)
The second point is that in college, there's the most diversified cultures, peoples and mentalities. There are stereotypes, a lot, that's why it works perfectly in BaDIK.
I am sure that in the last episodes, there will be some consequences for the previous choices and behaviors of the MC, but it won't be dramatic as AL or as the players expect it.
This game is the best porn game (yes, it's a porn game) ever, and I'm sure it will be like this forever. DPC is at his peak of creativity, motivation and hardworking. That's probably why he's taking more and more time to create animations, deep down, he knows that the internal resources are not infinite.