You're right, but if the constraint were just the units, there is the chance they could have some wiggle room. For example I've read (not sure about that) that OKW units are the whole buildings. Haven't all buildings the same floor plan?
Anyway, in my opinion, it's academic, because regardless of what the POS say, Florida law wins. And the Florida law says that the one-to-one rule is valid at "timeshare unit" level. A "timeshare unit" for the Florida law is a lockable dwelling that is separately conveyed. In a resort like VGF that only has lockoff studios, they have sold guaranteed weeks for studios, so they have conveyed lockoff studios, hence they are, without a doubt, "timeshare units" for the Florida law, so they cannot reallocate across them. But I would argue that since lockoff studios are bookable on points and point charts are published for them, for a point timeshare this means the lockoff studios have been conveyed as well, also in a resort like SSR which didn't sell guaranteed weeks but has always provided a way to book studios (as there are no dedicated studios).
The issue here is: has DVC renounced to reallocate across unit types this year just because of the bad feedback?
Or have they renounced it because they realised we could have a point that it's illegal? Because it it's the latter, then there's the big issues of the three reallocations they've already done (SSR THV, BLT and AKV view adjusting), what to do with them? I guess the strategy here is "let's not speak about past reallocations across units and hope no one questions them".