Please explain. The heel in particular is identical to the 'regular' ones apart from the track it mounts on. The toe only differs very very slightly. Are you just regurgitating something you read on the internet or do you have actual experience with them?
OP, my friend had a pair of the first season ones which he warrantied 4 times before eventually returning for a full refund because the binding would not stay in one place. He would start a run at +4 on both skis and finish up on +5 on one foot and +3 on the other.
A season or 2 later the design was changed so that the adjustment screw is detented, you can tell if you have one of these because the screw will click when you turn it, the old ones are smooth. Apparently this fixed the movement problems for the majority of people.
Aside from the forward-backward bit they are nigh-on identical to the normal bindings. The track system is more or less the same as a Demo Griffon/Jester and I've seen people hammer those things (skied them myself pretty hard) without any notable failures other than the usual things you get with Royal bindings, being the heel A-frame snapping on the Griffon or the entire toe-piece pylon getting sloppy on any of them.