I don't think it's the school's responsibility.
I think it's the student's.
As a student you can get as little or as much as you want from the courses available.
I took a class for ground school, I also got several books on the subject, and I took a video course as well. That was how I prepared myself for the knowledge parts.
When flight training, between lessons, I used to practice in the chair at home, replaying in my mind the previous lesson (or two). And I read in the books about whatever it was that my instructor was teaching me, and what I expected him (I asked) to teach me in the next lesson. That way I was prepared for that next lesson when it came.
If you go through life expecting to be taught everything without having to learn, you'll only ever be mediocre at whatever you do.
If you really love something, like flying, then why not reach out and grab every bit of flying knowledge that you can?