That's why people say that taking away the rights of one group is like taking it away for everyone.
I do believe that providers of such services such as cloud, internet, ... have to stay neutral on such purposes under nearly all circumstances. If the team behind KiwiFarms did something illegal, this is a problem for the judicial system.
But also in KF's case I think it was not so much their content that got them "in trouble", but the people behind that crusade being so loud about it, like Liz Fong-Jones and Keffals, who relentlessly harassed every possible service provider even remotely related to any aspect of KF-related services at all, which included domain registrars, DDoS protection services, hosting/colo/DNS providers, IP space owners, upstream ISPs (and even Tier 1s), etc.
It was basically a master class in mentally-questionable retribution crusades for bringing their very ugly skeletons out of the closet and exposing all of their wrongdoings. LFJ was mad that their rape allegation was made public by KF, and Keffals was mad that their illegal bathtub-HRT scheme was made public.