Bannon wasn't seen sitting barefoot on the floor while dressed up dignitaries were standing up in full suits.
Well, first of all they're clearly lining up for a photo op and as far as I can see none of them are paying the slightest bit of attention to her.
Secondly, it only takes the slightest glance to see that she is not "snapping pictures on her phone". For all anyone knows she might have been conducting important business on her phone at that moment, but because she's silly airhead Patriot Barbie she must be taking a selfie or something, like all the silly blonde girlies do.
Again, if Bannon was holding his phone in that position would everyone assume he was "snapping pictures on his phone"?
Let's not become the thing that we're meant to be opposing.