Actually, that was my proposal at begining of the season when i saw too many competition failed to be watchable. But the point in that proposal is not to minimize number of quads in programs (nobody wanted to say you can jump only 2quads or 3 quads per program). Cause skaters who can jump 2 type of quads they will jump those 2 instead of 3, skaters who can jump 5 type of quads will jump 5 instead of 6 etc So that is just one quad less per program per skater. Not a big deal really. The point is that skaters will have only one chance to perform that type of element in their program. So skater who fail to perform that element clean will be properly punished for failing it (when he has no chance to try it again). And actually thats how things work in many sports.
I think this would lead to people attempting types of quads they're not yet comfortable with in order to have a higher number of quads, so for example instead of two good 4Ts (one in combo), a skater might do one good 4T and one wobbly 4S because that would be the only way to have two quads. I don't really see how that pushes for more quality in quads, and that seems to be the direction the new rule change is taking. Also I think it's important to note here that the rules will apply to all skaters, not just the top guys, and the number of people capable of more difficult quads (consistently) is pretty small still. Which would just make the barrier between people with many types of quads and with only one or two types of quads even bigger.

