Interesting. The guy (Langdon Hickman) really likes them. His "essential albums" aren't quite the usual ones, either - two (...Court.... and Red) are, but then he veers off.

https://www.treblezine.com/beginners...-king-crimson/

And he makes this very good point: "it’s not that they created the style, so much as made records that felt at last like they demanded a brand a new name and with it a brand new way of approaching those sounds, both critically and artistically."