"Technically", they said they would do it as long as there was "agreement" amongst other core developers. But yes, the fact that they seem to have reneged on that and given certain individuals over there that have become a detriment to core and IMO bitcoin in general due to their attitude, I can certainly see how miners etc are so pissed off they're not willing to just bend over. But we're reaching the point where they're going to have to make a final decision to suck it up and just do it, or risk the future of bitcoin for everyone.