Agree. Also weird b/c G has a special Google for Education scheme for schools. Which the school would be tied into, and accounts would be made through that. G makes promises like it won't use the student's data for other purposes, no profiling, no ads, etc.
I still wouldn't be happy with having to use G as a student. For lots of reasons, like normalizing it so students will keep using G after they graduate. Even so, I believe G does make a good faith effort to adhere to their promises about not using student data for other purposes. But prob only if done through the official channels to create the acct.