I have never seen the skill skew anything. It allows one shot, a ballistic puncture crit, not shrapnel. Against combat armors, only ballistic impact. With sniping, it is much deadlier, but still only one shot in a round requiring 100% activity against an unaware foe.
If a player wants it, I have no problem with it. If you do not ban it, I doubt it will overwhelm your combat. Hades, it takes 4-5 levels of development to get any good at it. Professional snipers are not level one.
And to use a scope at long range in a wind does indeed require skill.