This is where we have to be careful. "some people" isn't the same as everyone, or even the majority. That article is a bad take, understandable, but still a bad take. But it existing doesn't take away from the fact that if we want to represent another culture in our work we have to do the work to do that culture justice.
It's all very much worthy of discussion. Only by discussing we can grow. I'm just worried that we might fall on the "slipery slope" argument and never do the tough work because we are afraid of potential risks hidden in overcorrections. Let's focus on this thread, has anyone made a reasonable argument that someone like Matt shouldn't ever try an aproach a culture he does not represent?
The way that it directly affects most people on this thread is in the lack of campaign settings that represent different cultures. I think it's too bad that we don't have a campaign sourcebook based on, say, First People legends and lore. Maybe something from southeastern Asia or any of the other hundreds of cultures we could pull ideas from. I get that mistakes were made in the past and we should learn from them. Times change and we are more sensitive to depictions than we ever were but we've gone from Oriental Adventures to ... nothing.
P.S. I know I've been using CR as an example, it was just one article that caught my eye a little while back that seems to be representative of a trend.