Weidman needs more fights. No way does he deserve the greatest of all time yet.
The entire argument comes down to this, and I'm on your side. You can see AS two ways. 1) The MW champion 2) The greatest of all time.
5-0 in the UFC with one impressive win to me isn't enough to warrent you a shot at the best fighter ever. I kind of wish AS would vacate the title and just fight whoever he wants from now on because people dont even really remember that he has a title at this point.