Got mine as well. For all the shit I've gone through with the faa. I'm fairly surprised. Also not sure what pool I am, but I'm the one for prior military/controllers or whatever it is.
Yes, they don't care. The only security clearance that would help is if you've gone through the FAA process already. My military one did NOT carryover. When I went to a contract tower, my FAA background check was waived because I had it with the FAA recently. I'll find out this time how it works in regards to timing of security clearances and what not.