All ingame holidays (in almost every MMORPG) are American or English speaking countrys holidays.
Christmas is exception, but again-all games have american Santa Claus.
My opinion:
I agree with this.
I like Galactic Stronghold. It's a pleasant surprise for me. Thanks. I just welcomed the possibility buy smaller appartment (2 or 3 rooms). And crafting system is unnecessarily complicated. Why? Hook systems, of course , also not ideal.