I really don't see what a problem descent is going to be. If you take all of the new rules into account, that 180-pound kid would have to be at 15 percent body fat to be able to (without a waiver) to go to 160 anyway. A kid at 10 percent would only come in at a 7 percent body fat (minus 3 percent of body weight) at 169.
The only problem that people seem to be having with descent is that it's new. What it prevents is kids cutting from 180 at the end of football to 160 in time for the first meet and I fail to see what is wrong with that.