We had been a university with office365 for several years, and the price change came well after the product comparison and decision was made. Once you are in an ecosystem like that the cost of changing is astronomical when you include migration labor, training, and loss of productivity during the transition. When you are a university with thousands of student, staff, and alumni accounts, and the office, mail, and authentication environments are integrated, it's realistically functionally impossible to migrate.
The student A1 licenses are 0 cost without upgrades, which is why it was chosen, but the storage change was a blindside. We had hundreds of accounts using over the 100GB of data (which was within TOS) and had tons of data in onedrive which had to be moved or we had to fork out per account. This was a bait and switch, plain and simple, and that is the issue with "cloud for everything" is you are at their mercy.