If I had to guess, RBS is "Risk Based Screening."

On the surface this sounds like a baby step in the right direction (a big step would be implementing this policy for everyone or nearly everyone), but I have little doubt that TSA will find a way to screw it up. Things that came to mind immediately:

Individuals under 18 are not required to provide ID, so age will be "determined" by TSA, right? Are they going to, "out of an abundance of caution," decide that anyone bigger than a toddler might be 12 and is thus not exempt?

I assume MCO does not have NoS-only checkpoints. If this goes national, what happens at places where there is no WTMD? Automatic groping would not support the unstated TSA goal here, which is to reduce public outrage triggered by patdowns and scans of children.