No, it's not. It's a proof that this game's balance is flawed as hell!
Yes, Snipers want to play against other snipers and AR and SMG players don't want snipers in their games. But if they make a sniper only playlist they could just remove snipers from their game, and release a CoD:Snipers game. Honestly, someone who doesn't want to get killed by AR's is a bad sniper. Stop using a weapon you suck with.
If those maps were big enough, so snipers have an actual advantage at long range, and if those gamemodes weren't all Rush-to-the-Objective (B flag, Bomb, HQ, etc.) we wouldn't have that problem.
As for Quick scopers, if you are good at it, you'll have no problem vs. automatic weapons. If you are bad at it, don't use a sniper in CQB.
Call me a hardscoper, noob, etc. but 13 year old OpTic(or whatever those "pros" are called)-wannabes with their "awesome" trickshots don't deserve their own Playlist. The only point of that playlist would be to lock them away from people who actually want to play the game.