This is all very true and maybe in this instance...I think I am guilty of it...the word upgrade should not be being used,
IF this plan of moving guests to.open DVC resorts if the guests resort remains closed during the stay happens, it is not being done to upgrade a guest. It is being done due to phased reopening. It would be simply to give cash guests another option instead of out right cancel...assuming it does happen...and yes, I am putting these disclaimers in here on purpose.
If the Information that guests will not be given a choice if moved ends up as part of any move, then I agree, it is not going to be considered an upgrade,
It would simply give the guest an option other than canceling. Many guests could very well decide to cancel.