While I agree, the publisher should be providing books in every region they can, it's not as simple matter of the publisher saying "I hate China, let's make them wait for the new book cause I'm a jerk." It's a matter of if they print an edition there do they believe they can recoup the losses of printing it. Publishers are out to make money.
Saying that there is nothing wrong with illegally downloading a book or whatever just because it isn't legally available in your area is rubbish. It's like saying having your friend in the US steal an Xbox from a store and ship it to you is ok because you can't legally buy one where you are. It's obviously not as simple as that, but it's just lame to rationalize breaking the law because you want to.