Del Potro obviously is a brilliant player as he showed last year, particularly at the USO. But he has become overrated in his absence, no doubt. Not to say he doesn't have great potential or that he wont win more slams but people proclaiming him as the next no.1 were doing so too early, particularly now that he has had a bad injury, we don't know now how long it will take him to reach his top form again, or even if he will. It is impossible to say if how he would have done here, so this thread is completely pointless, which seems to be your MO.
I would have read this if it was a bit shorter. But I am sure it was good