I think the part they really dislike is the undermining of the moral superiority they claim by donating their money to corporations that contribute ~nothing to the actual evolution of culture. Inventing strawmans about how difficult it is to click one button in Jellyseer and have a max-quality, buffering free copy of what you want to watch in perpetuity is an order of magnitude more work than renting a poor-quality subset of the media that publishers consider it profitable to provide.