No. Snipers are perfectly fine as is in the crucible. More people use shotgun because they are more fun and more forgiving. Worried about flinch? Land your kill shot before you get shot at. Handling? I don't see any huge difference. Scopes? The only spot I agree, they need to bring back scope options. AA/Hitbox? You said it yourself, git gud. You still shouldn't have any problem getting headshots dropping the reticle down from above on a player. Damage? Not all sniper headshots killed supers in D1, either. Either way, if you have distance on any of the supers you mentioned, you should have no problem finishing them off with another shot or by whipping out your primary... IMO nothing should one shot a super, because it's super! (looking at you SS).