It doesn't make autos OP, it just makes them more viable at distance. Which is a very welcome change imo.
Overpowered in relation to the other weapons, of course. Aside from long distances now, an SMG or AR will destroy anything at close, to close/mid, to mid, possibly greater. Some kills I've gotten with the AR that should never have been possible. AR was already viable at the range it was meant to be, which was close range. Anything further, and that's why you pick up one of the many scoped or distant rifles, or used pistol.