Its a nice video to watch but they only ever tell part of the story. For all his undoubted quality he messed up for Southampton's equalizer. If it was Vidic defending that box I would bet my money on him getting his head to the ball and clearing the danger. You only need to look how many times he repelled Shaktar at the Donbass. Vidic may not be better with the ball at his feet (although by no means a mug) but when it comes to defending a box, particularly in the last moments of a game, there is nobody I would trust more.
He's a better defender than Jonny Evans, not as silky with the ball, but still a superior defender no doubt.