Maybe so, I think some of its fashion and some is just natural progression. Are they needed on the road ? Maybe for winter commutes or all weather riding but for summer then probably not. They offer security to some who may be a little nervous and like the extra stopping power. Looks wise it’s like anything, some will and some won’t. I still like discs but think a real road race bike looks the dogs bollocks with rims 

power.
the introduction of disc brakes were a revolution in the MTB world. Still not really convinced about their migration over to road bikes, personally I think it’s a fashion, I still prefer a decent rim brake, I’ve never felt that a road bike brakes have ever been wanting, unless it’s a set of Weinmann 999 centre pulls on a chrome rim in the rain 
