As a veteran, the lack of salutes and especially seeing the NGs turning their back on Joe - stand out to me.
But I don't want to put any stock in this yet. Concerned about my own confirmation bias.
I have not seen a salute exchanged. Have any of you?
Think of the grueling training to maintain the correct kind and number of paces they MUST do in all kinds of weather-perfect uniforms, perfect character maintained for the rest of their lives-the wreath pin is sacred to the Tomb Guards. This is a serious break in protocol-their being there capless in front of commanders and generals means it is condoned.. See videos of how the the officer on parade deals with noisy tourists by comparison.