Deion isn't going to turnover 80% of the roster every year. Colorado was one of the least talented teams in P5 college football last year, and yet people are surprised he's revamped the roster as significantly as he has with the transfer rules today? That's exactly what he should be doing.
PJ turned over 80% of the Gophers roster the first two years he was here, and more of that would have likely happened in year 1 if the rules were the same then. That only led to an 11 win season in year 3, and the best shape the program has been in for decades.