Actually on the Al Majliss sports programme Al Attiyah discussed this. He said something about (my arabic isn't very good) Qatar would have congratulated US because that is the 'sporting' thing to do. Another QLer may be more precise.

The US has a massive debt and a sense of entitlement.
Ditto the UK....
Qatar worked hard at its bid from the start....2years ago. The UK for example didn't and was too complacent.