To all for your reading pleasure. Also note that CE is not waiting 5 to 7 to 10 years before a PR is initiated, it is designed to catch things when they happen or within a lesser amount of time. There are many things about CE that are not made for public consumption, so to say it does not work would not be an accurate statement. Other contributors have provided their take:
I included this one specifically to show the same concerns are addressed previously and are being worked: https://news.clearancejobs.com/2018/02/10/implement-continuous-evaluation-across-government-today/