Anything can break. I snapped the frame on my Flux Titans (now the TT30s) after about 50 days. Landed pretty badly in the back seat and torqued the shit out of it. They held together though. I took another run before I finally stopped to check it out because it just felt loose and sloppy.
Yeah, I'm more concerned with the functionality and comfort of these bindings, to make my choice.
Breakage is something you have to have some faith in the manufacturer for. That being said, I'm interested if any of these are fundamentally flawed - if not, I won't worry about it much.