Couldn't agree more. I don't work there, have not even interviewed (was offered, but had to turn it down due to military commitments). But to pass up the offer of a 2nd round interview based on some internet ranting and raving is nuts. Hell, if nothing else, consider it a free trip to HK and a chance to practice your interviewing skills in, what appears to be, one of the most challenging interviews in the business. You'd pay big bucks to some outfit like AirInc for that kind of practice in the US.
You never know what might happen, especially given the current $hitstorm in the Mid East. You might just get the job, and might actually want to take it, if the US airline industry take another header. Just seems like you're passing up a golden opportunity. Of course, if you're that luke warm on working there, then CX will probably pick up on that in the interview anyway...
