Regardless of whether this was a canned hunt or not the fact is that one of the two shots fired when the lion was real close most likely saved that hunters arse.
One of those two shots hits high in the lions chest and you can see the hit and the blood spray.
That hit stuffed the lions timing and he ended up skidding and overshooting his mark.
His back feet are both skidding and he attempts to spring using his front legs.
If those close shots had missed he may well have got it right and nailed that hunter and maybe others there would have been injured as well.