Do you know what "COMPLIANCE WITH THIS PUBLICATION IS MANDATORY" mean?
And that publication states the scope of its coverage as - "This instruction establishes policy and provides guidance for excellence in protocol, decorum, customs and courtesies during Air Force ceremonies, conferences and social events; in hosting distinguished visitors; and in honors afforded at military funerals." It does not, has not and never has said that it applies to all aspects of a service members activities.
I can assure you any misuse of the flag my military members CAN be 'prosecuted under Article 92. Would this person be? I have no idea. Should they be? That's not up to me. It's obvious to me you never experienced a person being punished for mishandling the flag.

As the instruction you are attempting to use does not cover the incident in question it could not be used as a charge under Article 92. And no, I never observed anyone mishandling the flag being punished, though I have seen those that high-tail to cover at the sound of Retreat being scolded and admonished. I have even scolded them myself.
And you know, I thought you were better than this than to go for the "intellectual dishonesty" card. Last gasp of a losing debate. I am not trying to point out how I feel about this; I gave you the facts and you reject them because of some apparent ideology or refusal to believe the military would actually hold their members accountable for these sorts of things. I honestly don't care. This obviously has gotten on your nerves and that ends the conversation for me. I'm not going to play these stupid "you're an idiot" games anymore. If that's the depths of your ability to discuss things, it's no longer worth it to me.
The military might attempt to hold a person accountable for the act (I suspect it would be under Article 134), but you haven't shown that the incident is not allowable.
And this proves your only intent is to be disparaging rather than have a civil discussion. You know damn well what I'm talking about.
Desecration
Protest
Desecrating a flag at a protest while in the US, not on base, not on duty, not in uniform, not breaking any law or breaching peace, and in a manner that does not incite violence is allowable under our rules of law, even in the military. (See Enclosure 3, page 8, paragraph 6 of
DOD Inst 1325.06)