Sounds like he’s lumping a few recent episodes together. I saw the Whole Foods one where they gentrify the slummy part of town that Kenny lives in. They build a whole upscale business/residential/art district around his little cracker box house.
Yes, if you read the article, he is clearly talking about the theme of the entire season.
It’s not just lumping a few episodes together.
This entire season of South Park is being driven by an overall plot arc of political correctness and it’s ramifications.
There are no individual stand-alone episodes, they all tie into each other and into the common theme and arc. All the episodes need to be looked at as a common whole to understand the message.