It's difficult to be certain, because the Florida law is written with traditional week timeshares and have only some references to point time systems. So it is subject to interpretation until someone challenges it in court.
I am convinced 100% they cannot raise the lockoff premium.
90% they cannot reallocate across units.
60% that they cannot reallocate between studios and 1BR within the same unit.
But, even if legal...
I have not studied all units in all resorts (because I have a life), but I think at most resorts units are made of different number of room types. A reallocation between room types would be possible (if legal) only if all units are declared with the same number of 1BR and studios. And since
DVC would probably need to do it across all resorts, saves us from a reallocation.
There is also the opportunity for Disney of doing so. If studios cost more, then the cost of entry in the system is higher. Studios are the most popular because fewer people have the means (or the will to spend them) for 1BR.