Looks like ony 16% of the peloton are happy:
"All riders were given the opportunity to vote but only at the end of November once the CPA had already agreed to the trial going ahead on our behalf," Froome pointed out. "The results of the vote being 16 per cent yes, 41 per cent no and 42 per cent if conditions were met, which they haven't been, I'm amazed the trial was allowed to go ahead. I'm personally not against the disc brake trial, but I would expect a certain level of safety measures to be put in place first.
Personally I don't care either way. It doesn't make any difference to the racing as a spectacle, except we might see more amusing shots riders flapping their arms wildly as mechanics fluff wheel changes.