Where is the control group of regular dreamers exposed to the same sounds when in REM?

Lucid dreaming is just an unusually awake form of dreaming. Not surprising that they can hear things especially the ones that can move their eyes left and right when prompted…

The study should have simply been find people that can move their eyes left and right when prompted that still have REM brain waves tell them some random thing and see if they can remember it when you wake them up. I don’t know why that’s not completely obvious maybe it is and these guys are just grifters