Maybe it's like a form of reverse psychology to manipulate the populace.
Since it was a close up shot, and it was on the MSM, maybe it was meant to be there? The media is so ultra-fake these days, I wouldn't be surprised
it was all a set up.
I can hear them behind the scenes now, saying something like :
"Yeah Michelle, just say something rude about the flag, and since all the anti-government crowd hates you, they will automatically take the opposite
position and go into a deep fit of patriotic rage and it will subconsciously activate their indoctrination programming and bring them back into the
fold of pro-government ideology, slowly but surely."
Maybe, maybe not. But hey it seems reasonable to me with as screwed up everything is these days...