In an ideal world maybe he shouldn't be starting but unless you can say for certain that if we signed....we'd be x amount of points clear then his goals and perfomances have contributed hugely to us being top of the league and even if you could that's not to say that he hasn't been one our best performers this season, as he has.
With Torres playing Kuyt would have gone unnoticed. He has been one of our best performers this season whilst not playing great, which tells you a lot about us and the strength of others in the league.
Still, I'd be willing to bet we'd be better off with a genuine RW who is quick and consistent.