It is fine. Everyone always wants to focus on the angle but shot placement far outweighs that. This clip is a perfect example. Had that arrow been tucked right behind the shoulder/front legwe would not even be having this conversation we would be looking at a pic of the buck on the ground. Certain quartering towards angles are too extreme but so are certain quartering away angles(every circumstance is different). Well I think the buck will be ok but good luck in your search anyway.