no, they should remove it like all FPS. I don't know any decent shooter with crosshair on sniper rifles. I think Valve missed to remove it for snipers
Also making it less acurate is useless, snipers use the no scoping shoots on close range, and even less acurate it will hit you at close range, even at medium range for sure. Sniper job is so easy they should't buff him in this way. If a sniper haven't had the skills to headshot an incoming pyro or whichever class, he deserves to die without any chance of surviving