Scout Rifles are a problem because they have almost no counter. The only way to counter a scout is with "you guested it" another scout. Jade Rabbit, Polaris Lance, Fang of Ur Yut, The Trials scout (whatever it's called), Wicked Implement, all have become an issue. Snipers are completely useless for the most part because one they have little to no ammo and two they suffer from so much flinch it's ridiculous.
The one scout I am surprised I never see is Touch of Malice. This thing kills so fast it doesn't even make sense. Also, the aim assist on this thing is nuts.
You cannot have scouts do the damage they do and have insane range and have high aim assist and have access to god-tier perks, and then expect them to be balanced when they have no counter except each other. It's impossible.