I see nothing to really complain about, the main player base of the game is American, so obviously most of the holiday offers will be for something that is actually celebrated there, or well known there. The important thing to remember is that you too can take advantage of these offers, I do not understand why this is actually an issue, it is just a theme for a special offer. If you were to get special offers for every holiday, of every country with any sizeable player base, then there would be no point in them at all.