Hm, bleeding a brake could be regarded as ten times as much hassle as replacing an inner cable, but then that's ignoring the frequent adjustments for pad wear with mechanical disc. If the assertion specified a hybrid caliper, maybe...

But yeah, the best cable in the world isn't going to allow modulation as fine as a hydraulic hose. Always wanted to try those road hydro rim brakes Magura did... tried the MTB version, it was pretty impressive.