Our experience (as recently as two months ago) has been that the H room is priced the same as a roomette with a qualifying disability.
When I made reservations for the Empire Builder yesterday, they insisted the H room was about 10,000 points more than the roomette and the pricing of one had nothing to do with the other. I was short of points to book at the higher amount so snagged the Family room which was slightly less than the roomette.
Is this a change in policy? I did call back a second time and got the same answer from a different rep.