The orbiting arrows mechanic on the Archer is feels frustrating because it essentially "misses" the enemy I was trying to hit. For example, try shooting an enemy that's getting close. If the arrow orbits instead of being a standard shot, it's very likely the enemy will get through and hit you. (Orbiting arrows seem to be very unlikely to hit a target in the direction you're facing.) This has resulted in many cases where enemies get through.
Not sure what the best approach would be here, but that skill should definitely not negate my normal shot when it randomly goes off. I've had it go off a couple of times in a row, and that's pretty devastating. Maybe the orbiting arrow can be an extra arrow in addition to the normal one you fire?