1) The first part explains how points can be moved: they can increase and decrease within the same Vacation Home
2) The second part states the end result: points within the same Unit must remain neutral.
Both must be true.
Now, if you move points from a 1BR to the studio of the same unit, the total doesn't change (so 2 is ok) but you haven't moved points within the same Vacation Home, so you have violated 1).
But if you move points only in the
point chart of each Vacation home (so 1 is ok), then of course the result is that the points are neutral for the Unit (so 2 is ok as well).
At least, this is my interpretation.
Correct. The interpretation that allows
DVC to increase the lockoff premium is that only the points needed to book the 2BR are counted, the points to book the lockoff portion don't. Since the total points sold at a resort are calculated only for the full 2BRs, I can see the appeal of this interpretation.
However for the resorts with dedicated studios, with the proposed 2020 charts, the new maximum reallocation value for some resots was greater than the value in the POS. Crevette raised this with Y. but she replied something like "the maximum reallocation value is there just for illustrative purposes, it is not legally binding", or something like that.
Units are well defined. In the POS there is a section with the map of all Units. Your contract will tell you that you own a 0,x% of Unit YYY. Units are what are declared in DVC inventory when rooms are released for members bookings. The definition is generic, but the Units themselves are decided when the resort is built and the POS created, they cannot change them in any way.
I agree that, as probably most contracts, there are parts that are not 100% clear and could be interpreted in different ways. Otherwise how could lawyers earn their living?

However I don't think DVC wrote the POS muddy on purpose to exploit it later. They've just realised they could interpret it in a different way.
That's also the reason discussions on forums like this one are very important for all members: if we gain a better knowledge of the POS and the contracts, we can argue withe DVCMC management and possibly avoid things like the lockoff premium.
The lockoff premium is part of the point chart released with the resort. I don't think there is any way we could contest it's not legal at all. That's the increase of the lockoff that is under scrutiny. For a number of reasons. One is what you say, the reallocation being point neutral for each Unit(but if all units are made of the same number of dedicated studios, 1BR and 2BR they would be point neutral even with the increase of the lockoff premium, I don't know if this is ever true for any resort, one should study the composition of each Unit).
Then there is part 1 of the reallocation rules. The maximum reallocation rule. And biggest of all: DVCMC has a fiduciary responsibility to act in the interest of the majority of members. Increasing the lockoff premium did hurt the majority of owners.