Not sure what you’re on about.
I don’t think the article claims “no CGI” and certainly doesn’t claim to be straight-out-of-camera with no post processing. It’s about practical sets, which they do use. Not the mostly-green-screen or The Volume virtual sets that many shows use now
Most of the Marvel shows that were good (not saying they all were) were only really good the first season. Daredevil, Jessica Jones, Luke Cage… Even Loki. Second seasons were ok-to-poor where the first seasons were all really strong.