I think (though I'm not sure) that the proposal means that we have a distinct instructor qualification, and that the hourbuilders can't instruct if they don't have it. So there will actually be LESS instructors, and those that there are will want to be instructors. The hourbuilders will have to hourbuild some other way, and the instructors will be better paid...law of supply and demand. The students will be taught be instructors who want to be there, who are trained to teach, and who will probably stay for longer. So they'll probably complete the course in fewer hours, costing less for them overall.
At least, that's how it would be if I was responsible for it.