All this theoretical talk is nice, but...
If the boards aren't heavier, and they weren't breaking, then there isn't a problem. If the feel is better because it's a more consistent flex (or really any reason), then who cares what kind of engineer hoops they jumped through or not. In the end, it's about what works and what you like under your feet. I've got to assume since they are putting ICS on more boards, and on their top boards, it worked for burton and those testing for burton.
I think what is more insane about this conversation is that somehow there is more power transferred to the board because you are on it. Tall bindings send more energy with less movement; look at racing gear, and restrictions on racing gear. There is a reason they only allow bindings to be so tall, and every single racer skis that max height. You can certainly get a more preferential feel lower to the board, and most jibbers like that since keeping the board flat is desirable.
I'd like to add that I hate all of you for getting new gear, and I will be riding crappy broken 4+ year old gear this year. Maybe I'll spring for a pair of boots, but thats a big maybe. Have fun with the new toys guys!