Those games are pretty mainstream, I can't imagine how many gamers are getting rooted as we speak. I'm glad ubisoft are getting their asses kicked over this (especially with their history of aggressive DRM'ing) but for the users that's terrible. So no, I don't think that's very responsible.

That being said, installing a "sudo" plugin in everybody's browser without any security validation (if I understand correctly what this is about) would be hilarious if it wasn't that tragic. But gamers are gamers, they forgave sony, they'll forgive ubisoft too, and they'll never learn.