It would be better if there was a ublock origin for cookies. The addon would force cookie creation of every opt out cookie and maintain this information using some kind of list, maybe an EasyList for cookies.
They'd just start tracking that info on the server side (while still requiring opt-out per-device), and then we'd have to make the extension copy your session cookie between opted-out devices, and then they'd come up with a way to counter that...
Cookie AutoDelete just cleans them except in a whitelist of domains. It's the next best thing.