I think it depends on which rooms you are looking at. I was at Riviera this past summer, the queen Murphy was not super high and not so low. I am 5’ and I could sit down on it with my feet not flat, but my toes still touching. (Short legs, longish torso)
The twin Murphy that I slept on was low. I would say with the bed down, the top of the mattress was about 14-16” from the floor. It might not be that low, but felt like getting up from a squat.
I suggest looking for room view videos. People that do good reviews will pull out all the beds so you can see them.