From hints left in other posts, it appears that Secure Flight has been implemented. Therefore, no more SSSS at the C/P, only the pseudo-random secondary (e.g., C/P grope when you piss off or look at the TSO without the proper "respect" [/sarcasm] [note - this is my interpretation of real world events, not the posts from the various TSO here]).
Since they have no more SSSS, the thought has been that we, the flying public, should expect to see more of the unconstitutional gate gropes.