No, I wouldn't have. I was disappointed that it wasn't the nicer of the rumored belts, but I wouldn't have chanted against it. I would have been watching the match just like I was doing on TV.
I never just go with the flow when I am at an event. I cheer for who I like. There have been many times I have felt like I am the only one cheering for a wrestler in a match. In fact, if I cheered at all in relation to the belt, I probably would have cheered for it since everyone was hating on it... just to be a pain. But more than likely, I wouldn't have done anything but paid attention to the match.