Alan Shearer called the goal a "masterclass" but said it wouldn't get the recognition it deserved because it was scored "by a Newcastle player".
West Brom head coach Alan Irvine said it should have been stopped.
Alan Irvine (talking to the BBC): "Give Newcastle credit, we probably didn't play as well as we needed to do.
"It was a brilliant bit of finishing from Newcastle's point of view but we made some poor decisions on a positional basis," he said.
"There were a number of players who could have made different decisions to make us a bit more solid - we were a bit ragged.
"Full marks to Newcastle they took full advantage of that but we certainly have several things to look at from that."