There's no way the WH is totally full of stupid cluelessness.
I ought to add that to my sig as a Don quote....
But seriously, while I'm sure someone noticed it, I actually can believe that no one with the authority or gumption to question the First Lady's sartorial choices thought about it or cared about it enough to say something beforehand.
Mind you, I can also believe that it was a deliberate choice, either to signal to the base or to troll the media. But I don't think it's completely unbelievable that, yes, this WH is that full of stupid cluelessness.