Well, I guess it comes down to your definition of "skilled". Personally, I practice braking at the limit all the time. Coming up to a stop-sign, I'll test how short I can stop from 20-30mph from 100ft out. Then let up the brakes and slowly approach @ 5mph the rest of the way. My hands are always close to the levers in case a car pulls out. When you're doing a panic-maximum-OMG-emergency stop, most of your braking-power will come from the front-brake. Test it out yourself, get up to 30mph and try practicing panic-stops with only the rear-brake, then only the front-brake, then try both. You'll find that there's minimal difference between front-only vs. both while rear-only will take forever.
Similar things happen in the motorcycle world. A lot of new riders are afraid of the front-brake due to endos form their bicycling days. However, the longer wheelbase and much lower COG of a motorcycle pretty much makes it impossible to lift the rear-end up very much (unless you're hopping up off the seat a little intentionally to do a stoppie). In a vast majority of the motorcycle vs. car crashes (66% are caused by cars turning in front of a bike they didn't see), there are long skid marks from the rear-tyre of the motorcycle. They're using their rear-brake only and are slidding into the wreck. If they had used front-brake only, they would've stopped in plenty of time before coming close to the wreck. Unfortunately, learning the "skill" of maximum-braking in an emergency situationhas much more severe repercussions on a motorcycle vs. a bicycle. Best to practice that "skill" and get it down to an automatic response intentionally in a safe and controlled environment before you'll actually need it.