I don't think he's arguing in favor of moral relativism so much as saying that we need to remember when dealing with other cultures that they don't have the sam

I don't think he's arguing in favor of moral relativism so much as saying that we need to remember when dealing with other cultures that they don't have the same set of expectations as us. One of the reasons we are so anti-censorship is because there is a strong tradition of anti-censorship in the US. As much as we like to think we are inherently moral, the truth is that a lot of it does stem from culture. This isn't to say that anti censorship isn't objectively good. Just that we don't necessarily support it merely because it is objectively good. So you may get weird responses when you transplant such a value to a culture that has thousands of years of history where the issue of censorship was never really important. When you say censorship is bad to another westerner you are signaling a value and you expect a certain response. Your communication is predicated on a shared set of connotations. If you forget that others might not share your connotations and forget to argue from the ground up you might run into problems.