Actually it was not my experience. Someone posted about their recent experience at BOS at ycombinator and it is the only account I have heard so far about the new 'universal' procedure, the newest pushback from the Total Sexual Assault agency perverts basically making airline travel in the US completely intolerable for so many.
Maybe it's really just a form of petty revenge at the insulting report about their 95% failure rate at detecting weapons and explosives, but it could also be a strategy to get something they want. Maybe they figure that this two handed, double-grope will give them bargaining power to get whatever they want by agreeing to go back to the old genital karate chop method if their request is granted.
My experience was with a US bound gate-rape out of CDG (Paris) with an overly enthusiastic Frenchman who must have misread the TSA training manual and who believed he had to actually do a completely thorough genital finger search of the entire area. It was really disgusting and humiliating and makes the Genital Chop seem innocent in comparison. Or maybe he was just a horny perv like those guys in Denver. Anyway unrelated to this new Universal Grope.
Could you post some more detail about what happened to you? So far there is only one account. Another would help I think.