It is a sad but consistent trend - if an American crew cock up, it's an innocent mistake and invariably a combination of external mitigating factors with the crew to be sympathised with, but if anyone else makes a mistake they're branded as incompetent, dangerous and a scourge.
The US have as much of a cultural issue when flying as any other region, and just like any other region, most of their pilots are probably just fine, with only a minority suffering a stereo-typed fault. In the case of of the far east and increasingly in the EU, there is an over reliance on avionics. In the US, there is an abundance of over-confidence and gashness, and looking at the amount of landing incidents following visual approaches or long visual segments after instrument approaches demonstrates it well.
Now, given that so many Yanks lambasted the Asiana crew for being a few feet too low to get away with it, how can so many of the same group defend a crew that landed miles out of position? Just because they were lucky enough not to have caused any deaths does not excuse the serious lack of airmanship in this case. They were luckier, not better.