Even if it's a slight buff, they're basically giving her more early game damage because it doesn't have "enough punch".
This is the same mistake as so many times before. They buff new champions based on their win-rate the first 2-3 weeks of release. A **new** champion that's weak to CC, mobility and assassins (all of which are meta rn) is obviously going to have a bad winrate.
If anything, what they need to change is her RNG W and nerf her E.