I don't think 'gentrification' is the right word for this. However the comments here do illustrate an underlying 'real' phenomenon what ever you call it.

Just for clarity: - Non-Japan Asia is new to gaming, and that's okay, it's going to take some time before they find their own voice.

This is not factually true, video games have one of the most popular forms of entertainment in non Japan Asia for 25 years. Nearly a quarter of humanity lives in non-japan asia. There were good non japanese games, bad non japanese games, and more than anything tons of 'mid' non japanese games. They aren't new too it, and they do have their own voices and styles.

What gets talked about as history of video gaming tends to reflect American video gaming history and the unavoidable influence of America's number one vassal state, Japan. Really this is the history of games marketed in North America and that's fine, it just isn't the whole history.

Yeah, there's a real point that this article is making, but "gentrification" is not even remotely the correct word.