Yes, I don't think Greer would have went to ground so easily. I have to say that a mistake should detract from any performance, whether it be Greer or Dunk. Not saying Greer hasn't made mistakes this season obviously!
Interesting that Dunk got next to no criticism for allowing Sagbo a free shot in the cup game - turned out to be a very fateful error in the end. Good though that fans are so forgiving of a young defender's mistakes