IMO, this may be more about having an owner acknowledge things so if that owner is one who is doing a lot, or whatever DVc decides has shifted to commercial purpose membership, they have something to back it up.
Personally, I would not have no problem in saying yes.
Since the word leaseee is included in the POS under personal use, then I am being truthful.
The other part is that the online booking language and the reported phone or chat language is different.
IMO, it’s because it may be a tactic yo put someone on the spot and they are hoping some owners think twice.