Yeah. Mintz' supposed admiration for Yoko's stuff has always struck me as forced. He never demonstrates any specific knowledge of anything she's done; he merely praises it in vague terms.
The only reason Mintz ever kissed Yoko's ass in the first place is to get access to John Lennon. Eventually the ass-kissing of Yoko led to substantial financial rewards, e.g., $30,000 towards his house at one point in the 1970s.