No it’s not. Besides being a free speech advocate he helped normalize sex work. I doubt his properties have been especially safe and kind to sex workers, but the general population seeing sex work as “normal but maybe icky to some” has certainly made workers’ lives safer and their work overall less likely to be fraudulently exploited.
I’m not a particular champion of Hustler or Larry Flint, but I definitely think sex work generally deserves to be a part of the social contract and not a whisper and a wink.