It's marketing. No different than cable companies advertising internet speeds "up to xxx". They didn't say you were going to get those speeds, they just said it might happen. And, some hotels do indeed give upgrades. There's a FlyerTalk thread on this: https://www.flyertalk.com/forum/marr...2022-23-a.html

If you're looking for an upgrade, I'd suggest looking at that thread and see if the hotel is listed there, or perhaps a competing property. Show these hotels some love and don't bother going back to the ones which don't.