I think the tuition discussion isn't really about a company, or vendor vs. a consumer.
The discussion points are more along the lines of makkas medina, the chasam sofer/rema, paying a melamed, parent's ownership in the school...
It's not clear if schools are a fee for service or something else.
I don't know much halacha regarding these topics, (the headlines podcast covered some btw) but I am overall pretty shocked:
1) The schools overall took it for granted that tuition should continue to be paid in full
2) The relative lack of clear and public rabbinic guidance here
3) The lack of parents expressing their dissatisfaction
That being said, parents and schools are usually trying to accomplish a shared goal- educating your child. And when a parent isn't happy, they usually keep quiet as fighting a school is like fighting city hall.