You can doubleshot again already, what's the big deal?
The slight rise in delay from what it was before they got nerfed big time actually did pure snipers some good.
Back in the day these guys just spammed potshots in AnD rooms cause they couldn't actually snipe in any map other than Mansion or Garden.
Now, with the scope delay, people actually tried to learn how to aim so they can gun u down with some sprays, shotguns or revolvers/pistols after they hit. Not hitting meant death in most cases after the nerf (for bad sniping players). The nerf made the players better, cause they had to aim. If you were to remove the delay now I'd actually consider it to be unfair cause there are actually some players who can aim with a sniper now.