I had looked into it for spring break (we have early one, so discounts are there, but it's still mid March), and my sister got a BWV through Disney less than renting points would be. So, honestly, two rooms is still cheaper than doing this!
And I still agree with you. If I go with my kids and their family, I'd want at minimum, my own room with a door and my own bathroom and privacy.
I have two rooms at All Star Sports for me and my DD (special circumstances), and she decided last week to bring a friend. So, they get their own room with two beds, and I get my own connecting room (it's guaranteed with our room type). I'm not even sharing a room with my kid and her friend for 8 nights. I like my privacy and quiet, and they are also the type that like to sleep in!
It's not a vacation if I have to share a bedroom with others.