I've hobbied in Europe and Thailand and I'd say that most of the European women were the same. Thai people are very nice and friendly and I think that the women are more subservient than women here. The economic situation is also very different and they are more outwardly greatful than providers in the US.
I think that statement is giving US providers a bad rap though. I had a couple great sessions overseas but I've had great sessions here where the ladies have been very accomidating. There is something to be said too about being able to connect with someone speaking the same language and having a similar environment.
I see a lot of the real issues in more of the lower end BP ladies. I do think that a few providers here in the US and on this site get caught up in trivial matters too much (like scores and cancellation fines) that are petty. But that is the minority.
It's all just relative to your situation. So remember; ladies play nice and be greatful, and guys be kind and thankful.