Proper Cybermen

While I'm on the subject of new things being crap..weren't The Cybermen aliens from The Tenth Planet, rather than transformed Big Issue sellers?
Much as I hate to criticize the new DR Who series (other than that it's bollocks), this seems a bit lame. Mind you, I only saw the last ten minutes due to Cricket On Five, so maybe I missed some in depth explanation of the rewriting of history.