Most people dont know how to change their DNS, they have no idea what DNS is. I would have thought you'd need a VPN to get past it. You'd have mirror sites up more or less instantly but its an obstacle, it might help kick it into obscurity.I see where you are coming from but surely most people know that you just have to change your DNS?
Its a consequence and in the UK's case he'd be eager to cooperate and have the block removed. Which i'd deny him and tell him to get fecked but obviously Labour wont