What do you expect them to do? Get into a situation where they are responsible for the custom fees of dozens of other countries?
What other company, which ships international, does that? Does Amazon?
It's a risk you take when ordering from overseas. It's a risk that I have been aware of for a long time, because it's kind of obvious (to me at least). It's something that any rational and informed consumer takes into consideration before putting down cash for the order.