I am not arguing the fact that I am correct on this matter. Hardly the case. I am simply stating the fact that people coming in from Asia might be faced with agents who don't know the rules and may impose such surcharges to the unknowing traveller. Such situations will arise when one stops over in a city while carrying the same amount of luggage from say, HKG. Only when that person continues travel will he be subjected to such regulations, which is not very standarised.
And to think about it.... AA usually gives at least 6 months notice on such changes. Why the sudden change with X'mas around the corner. Surly they know that not many people will know of this regulation and that people will be travelling with bags full of gifts.