Baclkstab: if other player is not full glasscannon and you don't snipe it and chain cc it like cheeserunner you will never kill someone in this 2-3k GS disadvantage . Killing AFK player as full buffed cheeserunner is not real pvp.
GS is not real argument. Naked cheeserunner with legendary-mythic weapon can kill any mages in 1v1. And this dr has low GS in this sample. And this is not DR only example. Any BR user can do the same, just stealth helps DRs to hit first...