I'm not quite understanding where you're getting that idea from, but my point is that a sniper's rifle in vsh/ff2 requires more skill than the huntsman perk the server provides. Mentioned before the fully charged homing arrow takes maybe 500-600 damage per shot(including crits) while the rifle only takes 360 damage with a fully charged headshot. Being a hale regular I'd already know that being able to get constant headshots on the boss while fully charged is highly uncommon, that's not even including the strange hitboxes of certain bosses such as Pacman and Sanic. I'm agreeing with bagel to just remove it because it disrupts the gameplay altogether with the high knockback and constant damage taken.
Yes, the other classes have perks as well that can be unfair in the hales advantage, BUT it's not as hard to deal with as the homing snipers. With the right timing you can get hyper heavies since their only way in dealing damage is through melee attacks, if not, then getting the required classes and then cap with 520 scouts too. Infinite charged demo's, again they are mostly likely going to charge at you a lot of times since that's the chosen damage input. So getting rid of that shield with one hit puts them back at normal speed. Plus they aren't as common as you'd think. Homing rocket soldiers...they aren't as bad as the huntsman snipers due to less damage and no crits, unless the hale is constantly juggled in the air for a long period of time it's not that hard to get rid of with one rage. The engineers, alright I'm slightly stumped on that one. If anything, that's probably the 2nd hardest to deal with if the have the short circuit equipped, but that's not the point. 50 cal spies, they can somewhat be an issue to fight against but it's not to the point of full disadvantage. Much like the rifle if you want a headshot you have to get passed the hitbox and actually figure out where it is, and if they deadringer or cloak away it's another class you can cap on. To wrap up what I'm trying to say is that simply, the other perks aren't that hard to deal with.
An additional thing is that snipers are a class you HAVE to kill before even thinking about capping. So through the -2k damage they got in the matter of 2 minutes, you have to go across the map because more than likely they are located as far away as possible, find them, get knocked back a few more times from the arrows, rage (if you even have it), and hope you only have to hit them once or land both hits (danger shield protects first hit and launches them really far). It's just a pest to deal with and no fun to fight against.