This is definitely an issue, that’s not VRS related. I’ve tested this repeatedly, when coming down to land (landing from a higher altitude, and slowly hovering to the floor) the power will fluctuate erratically. As an example, I’ll be at roughly zero airspeed, approximately 400ft or so in the air, then I’ll slowly begin reducing power, keeping a keen eye on the VSI, then boom, she’ll drop like a rock! If you’re successful in saving her from smashing into the ground, she’ll literally shoot into the air like a rocket.
I can easily perform the above manoeuvre in the Huey, Hip and Hind etc. but the Chinook makes it ‘extremely’ difficult.