Yeah, because he's being tried in a court of public opinion and not on facts. It's a matter of principle for me. The fact that he's a Cowboy irks me a little more, but objectively speaking, it's pretty absurd.
Additionally, I don't believe a CEO, Board member, manager, or Commissioner should be able to wield the magic gavel in any circumstance that can cause an innocent man to be punished under an umbrella term like "conduct detrimental to the league", or basically, image. Obviously, in extreme instances, it's justifiable. Not here.
That's like your boss firing you for someone accusing you of a crime you didn't commit, outside of the workplace. "Tom, that Public Intoxication ticket you got the other night.. well, we're going to have to let you go. I know they dropped all charges, but you have to go or get suspended without pay."
The NFL thinks it's "brand" is more important than the US legal system. That bothers me a lot.