Well, with Hanzo, the hit box is much bigger for his arrows, so you don't technically have to hit them in the head, you just to aim around it and you'll get a kill.
lmao at all these casual babies playing the new fotm game without understanding the basic concepts of fps games and accusing people of cheating or playing on console
big mousepad, low sensitivity, mouse with a good sensor and hundreds of hours of practice
"Flick of the wrist" aiming is almost nothing but practice in fast-paced games like TF2, Overwatch, Counterstrike, Doom, Quake... To a degree, with Battlefield too.
Hanzo is a bit trickier, because you need to "lead" your targets, since Hanzo's arrows are slow projectiles. And also Hold your primary fire button to get the full range+Damage effect.
I'm a Kitsune! Not a cat, or a mutt!