I’m late to the party but didn’t someone insinuate that maybe Q thanked the USSS because they secreted our prez onto a regular United flight as a means of avoiding being shot at in AF1....I know, its a stretch..but a United flight was diverted to Ireland for a possible threat on board...perhaps that was all made up to cover for escorting the prez...
Interesting possibility but inevitably that would have leaked. AF1 is a target but a well defended and guarded one. And POTUS is not one to leave Sarah Huckabee Sanders et. al. in harm’s way on their own IMO.
So many theories. Perhaps one day we will find out why Q was thanking the USSS.