The base marksmanship level is bad, so that you have room to improve. At the same time there is an element of randomness, so that even when you master the shooting mechanics new players still have a pretty good chance against you. Unlike V9. Since aiming and pulling the trigger is now a more even playing field it also extends the skill ceiling towards using the environment, intersquad positioning and combined arms rather than boiling down to one thing: aim.
To be honest, I think the low speed of bullets in V10 contributes to your impression. I am not sure whether they actually slowed down bullets or increased bullet drop, but it feels like it takes way too long to get "feedback" after you shoot. IE whether you hit or not. Definitely adds a layer of complexity beyond leading your target, as the learning curve for the recoil is also affected by this. Instead of getting seeing where your bullets go like in V9, you're forced to fire again before you can confirm anything.
It's easy to see the intent behind this, but I think it'd be better achieved with more sight misalignment, so that you are forced to shoot without the certainty of your sights not lying to you, rather than having to wait for the bullet to snail over to the target.