No, I understood it. I just disagree. Harry is more than capable of being serious, articulate and dignified when he's in a situation that requires it and he's demonstrated that many times. He also lets loose and has fun when he's with his friends hanging out in Las Vegas. That's basically why Las Vegas exists.
I have no doubt that he's also capable of being an excellent, attentive and interesting partner when he's with someone he cares about. I also have no doubt that while the Queen would prefer these scandals not happen, that she understands how insanely difficult it is on her grandchildren to live in a world where every move they make is scrutinized by the world.
Honestly, this whole incident says more about the people that betrayed his trust and sold his image than it does about Harry.