KR is notorious. Some people worship him as a deity (no, not diet, deity). He does ramble on about Nikon. But he's a presenter. An entertainer. He says as much. Being an entertainer goes help points across and aids storytelling.
His article on composition is thought provoking and I would say a revelation to beginners who come to you and say "is my shot any good".
Just don't make him your sole diet.