Well she was the boss, and he didn’t do his job properly. First Class is a fairly stupid concept to start with (I have flown business class for work and I find it very practical, you get the extra space you need) but for several times the price, first class has to offer these intangibles, like nuts on a plate. I think she was right to correct her employee, but wrong to go off the handle. We don’t want people doing that on aeroplanes, its dangerous.
Also I don’t see why she has been arrested in Korea for an offence committed in the US. Is it possible that this is being done to make the airline look better?