Nobody's criticising his strength and 100% commitment, which you need when playing as a target man holding the ball up etc. Pardew also praised his performance.
My judge of a top striker is, is he clinical in front of goal. A good example is how he does in a one against one dribbling towards a keeper. A good striker should score most times. Maybe I'm wrong, but I'd be surprised if Rondon was able to put the ball in the net more than 2 times out of 10.
Pardew also said players need to be a bit more calm in front of goal, but of course he might have had JayRod in mind from Saturday, to whom this should equally apply.
Of course under the previous managers' system, such scoring opportnities were extremly rare. .