I read it completely differently. To me it seems he’s saying the show Foundation is copying Star Wars, which in his opinion is completely antithetical to the novel and so therefore he’s stopped watching the show.
That is indeed what Krugman is saying. It's pretty clear:
> "How does the Apple TV series (of Foundation) turn this (the novel, Foundation) into a visually compelling tale? It doesn’t. What it does instead is remake "Star Wars"
And having seen the Foundation show, having read the Foundation book and seen the Star Wars movie, I think he (Krugman) has a point.