My floor is thick carpet like yours. I’ve gone from spikes to Cones to Cones with Round Things to springs to now Townshend Podiums. Each one was a lot better than the one before, but the jump to Podiums was greatest of all. Probably the best speaker isolation out there. Someone recently went from Iso-Acoustics Gaia said it was a big step up. I was just about convinced time to break down and get tube traps, then Podiums made such a big improvement I can thankfully forget about all that.
This has to be due to the speakers no longer mechanically exciting the room as much. In a smaller room I would think the improvement would be even greater.
The Moab thing was probably in jest. But if you were serious, then boy will you be shocked how much better they are.