I’d say they’re not calling him out because at some level they accept his views
Yes, that's why they don't want to draw attention to him! They're fully in agreement that JY should have access to women's spaces, and they're aware that's not an acceptable view. They think it's okay for this man to go into women's and girl's bathrooms. They think it's absolutely all right that he belongs to a women's gym - they're presumably less thrilled that he complains online afterwards that he didn't see many boobs in the changing rooms, but only because he makes them look bad. (And some of them aren't even strategic enough for that - Morgane Oger publically endorsed his ball-waxing harassment campaign, even after the pedophilia stuff was public knowledge. I guess MO is drunk on narcissism and feels untouchable after feminists backed MO's harassment of a rape crisis centre.)
But hypocrisy has never stopped these people before. Karen White got publically disowned for the most part. I think more of them would be trying to distance themselves from Yaniv if they weren't hoping it could still be swept under the rug.
By the way, KiwiFarms isn't working for me. DDOS attack? I suppose given the nature of the site, there are a lot of possible suspects for that.