Last Week Tonight knows that it's target audience aren't a bunch of 60 year olds who think cable will never die and don't know what the WhatTube is exactly. Word of mouth, reddit posts and forum chatter will drive more eyes if they give away some of the product for free. I don't think them giving away bits of the product for free hurts their HBO sub numbers and it can do nothing but help. Companies who don't embrace piracy as a real thing and figure out how to make their product something worth paying for will be doomed for failure in the next decade or so.