I think it's a misjudgement by Triumph to put TSA locks on the panniers. Those locks are intended for suitcases so they can be opened with a master key by airport personnel. Why should anyone have a master key to motorcycle panniers?
And to make it even worse, the master keys have been leaked/published online and can be 3D printed, so there goes the minimal security that TSA locks ever had.
But then again, as air_odie wrote, you don't even need a key since anyone's grandma can open TSA locks with a hairpin.