^ The stopping power issue can be alleviated quite easily through either larger discs if using MTB-standard brakes or using road-standard brakes. I'm of course not saying there is an inherent issue to begin with, but if one should want more stopping power, it's quite easy to manage.
I've found that a Cane Creek Drop V lever, MTB BB7 and a 203mm disc gives quite enough stopping power for 330lbs from 50mph. I now have a Sram Rival 1 lever and a road style BB7 with a 160mm disc and it works fine with loaded rear panniers. Next time I'm going touring I'll use a 180mm disc just to get a bit more heat capacity.