For anyone who doesn’t care what resort, I agree with you. But, we did not buy DVC until they built BLT because staying just any deluxe was not something we wanted to do.
So, buying where one wants to stay is important if that matters to you, If just staying on property works, then go for it,
But, it makes little sense to have a special place, buy elsewhere, and then end up disappointed when forced to stay someplace one does not enjoy,
I think those of us who share the advice of buy where you don’t mind staying is because ultimately, it’s a lot of money and being happy with the choice is important.