I'm not trying to start an argument with you, but remember that the 'Presidential Seal' is on the floor of the Oval Office. As such, it is walked on frequently. If it were deemed to be something as sacrisanct as the Flag of the United States, it would be an insult in and of itself, for it to be used as a flooring decoration.
I would submit that the Presidential Seal becomes the President's emblem for his term. I do not find it disrespectful for a President to do respectful things with it. Dancing with your wife on the emblem of your office, does not show disrespect for the emblem, IMO. Dancing with your wife, showing her love and affection, is an honorable thing.
If the President were to conduct himself in a despicable manor, on the seal, I would agree that it was an act of disrespect, which I would frown on.
The President is the head of state. I personally found it appealing to see the President and his wife dancing on the emblem that signifies the President's station. I may be wrong, but I did not see this as disrespectful.
