if your arrows are hitting in the same spot, your form is great
if they're not, THEN you probably need to change
form is way overrated IMO
If you're a gifted athlete.....I tend to agree. But from my teaching days (golf).....I can tell you that proper form makes it easier to perform a MORE repeatable task. To bolster YOUR argument....I'd submit Jim Furyk's golf swing. To bolster mine....I'd submit 95% of the other touring professionals doing it with almost identical fundamentals.
Knowing what I know, though....you'd NEVER "teach" anyone to do something in a non fundamental manner.......or, at least, not anyone you wanted to succeed.