Good Morning Terry,
Yes, I agree with you that PSP is not the Supreme Authority. However, it is THEIR job to adminster the registry. Plus, they have no interest in fighting 10,000 cases in court. They may would be s huge burden on their legal counsel Office. Especially, all of the cases would be the same: Protesting their registration due to starting their registration prior to SORNA.
Think for a second, do you think the PSP has the time and money to fight 10,000 cases??? I mean I would live in a tent so I could hire an attorney to challenge 1952 if I had to.