The question was why (or why not) O2 masks. Both sides of the argument have been expressed, same with g-pants. I'm absolutely sure the Blues have aleady thought of anything we have to offer. So it is, now, their choice. Their job is to look good and professional - not to other aviators, but to the public. And their act is top notch.
Safety wise, they are taking a risk. But they are US Navy aviators. And they are flying their flag brilliantly.
I stand by my safety aspects of wearing a mask. I respect their reasons for nor not so doing.
Anyway, what was the point of all that teeth whitening if no one ever sees it?