Yes and no.
I bought a top of the range Samsung TV [Note for the idiots -This is not a random dig at Samsung, just a true story] at the beginning of the year with the same motion gimmicks. The execution of the interface was terrible. So much so in fact, that I returned the set for a more 'simplistic' Panasonic Plasma with 2 remotes...
Build quality aside (which was bad for a high end comparable set), the interface was glitchy and unreliable at the best of times.
Imagine Siri on a bad day (everyday in my case..), not understanding anything you say, needing to shout instructions and then waving your hands around to control it and the wrong things, or nothing happening fast.
I do not doubt that Apple (along with everybody else) will soon release a better user interface experience, where it will be quicker and easier than looking for the remote, but the current offerings are not quite there yet in my mind.
Additionally and in agreement, the intricacy and unreliability of some of the interfaces I have tried to date, are far from disabled friendly.