This is what happens with a union. They voted for a floor and it came with a ceiling. Nobody experienced with unions should be at all surprised, but often folks who vote to unionize are not actually experienced with being in a union.
This is not at all to say that this is worse, it may be better at least for some people. But this is completely standard with unionization, there's nothing especially sinister here.
nb, I do not like Apple and don't consider this a defense of their business.