I wouldn't say that, I've dealt with some major turds when it comes to mechanical disc brakes. Outside of cross and tandems, the only reasons really for disc brakes on road is that the brake pads that are for the carbon rims won't stop carbon rims when it's cold or wet and to dissipate the heat seen on tubulars.

The issue I see coming is that braking on a road bike works on a different theory than what you would with a disc brake. A road caliper/rim brake is supposed to provide adequate friction to come to a stop/keep speed modulated when descending, a disc brake uses force in order to have a quicker stop. All in all, my gut feeling is telling me it's the industry trying to shove a new thing down people's throats instead of figuring out how to make a pad compound that will work on a carbon rim in all conditions.