Sleeper still one shot players across the entire map stupidly easy and can wipe out yellow bar enemies with ease. Sleeper didn't get nerfed.
Nobody expected or even wanted Sleeper to become worthless. It’s been one of my favorite weapons since D1. We all just wanted the game to be balanced, and balance would imply that all other weapons are equally worthy. In the short trial before forsaken, I got to use the prospector in gambit and that was fun as hell. None of us wanted gambit to be reduced to, “oh look an invader, better hibernate in this cave for a month and give the enemy team a free win while their one dude takes potshots at us with an instant kill death beam!”