Dunno, I've heard of ppl who try not to rely on the OU when eating out in the US.
Which I assume is just politics.
I can understand if you don't want to eat OU because of certain psakim they have (good luck in America, as almost every heimeshe hechsher relies on them for the core ingredients. And sometimes more than that.)
But from what I've seen personally, their actual hashgacha s excellent