Trust me, there are plenty of places that do it. These are the "core" drills that are meant to instill natural reaction through repititve motion. Sort of like a boxer practicing a right cross and then drop. But some chunners take it to the extent where there's too many moves involved. Even a porearranged drill should be a piece of the pie, and shouldn't be more than a couple moves at best. After prerranged exercises are proficiently done...time to move on to spontaneous sparring drills and sparring sessions.