I usually snipe for this reason too, except field because of the fun sniping combat you can have in the tunnels. When they don't sit in the back of their base which most snipers do nowadays, they can be extremely useful at taking back the field, Reservoir for example if those snipers actually moved out and played properly, the reps on field would have had a bad time. Which would likely result NOD to take the field and eventually win. I was on the enemy team though that match
I think the snipers are fine, it's just the playstyle that some people have makes it extremely annoying to play against, hardscoping one point, sitting far away in the tunnel on Field for example. But to change snipers because of people playing like this is a bit much. However i do agree with the fact that it's super annoying and making it so that snipers cant get away with sitting at one spot anymore hardscoping all game would be nice.