Good form to a hunter is crucial but I am not sure I would say more important.I can miss by an inch or three on a deer and the result is the same.I miss by that same amount on a target with all the marbles on the line and the results are not the same.Might cost me several thousands of dollars.
(EDIT,I HAVE NEVER MADE A SHOT WITH THOUSANDS ON THE LINE)Some on this site probably have,I was just trying to make a point .I have shot tournaments that I could have won a thousand but I wasn't in the running for very long.
What might make it more important is that when hunting,there are ethics involved with executing a quick and humane kill.A target cares less.