"While I appreciate the effort that's gone into this, I don't think the 3-D transition is an effective user interaction element because <insert reasons here>".
If you never bother to explain to people why something like this is a bad idea, then the flashiness is always going to win out. And probably will anyway, judging by the web at large :)
It was an emotional reaction. And it still is.
We went through all this with animated gifs, then <blink>, and then flash.
Please. No more.