When Disney reallocates the points, do they adjust per that resort. It seems like most ncreased and only a few decreased.
Booking a 1BR and a studios costs more than booking a 2BR. This is called "lockoff premium" in the POS. This year they have increased the cost of studios and 1BRh only partially balancing it lowering other units, thanks to an increase to the lockoff premium.
It is important to note that there is no theoretical limit on how much this premium can be increased. They could even have studios and 1BR cost as much as 2BR if they want. (they just have to do it over multiple years, as every year the increase can be max 20%).
What happended this year in practical terms is that the total number of points needed to book a resort according to common patterns has increased at all resorts. At SSR, if all lockoffs are booked as studios and 1BR the number of points needed has increased by more than half a million points.