At first blush as I watched yesterday, I thought it was just a soft goal. Watching it again a few times, I don't think I could blame Vickers. Their guy took it down at the edge of the area, bit of nifty footwork and he fired through the defenders legs, although underhit it had just enough on it to trickle in at the foot of the post.
I think it was more a case of him being unsighted, should someone have got a foot in? Possibly!