It eases the damage concern, but for me takes away nothing in the concerns about her Joy-disk nerfed and her team healing ability removed.
Also, for me for now she is mostly a great hero to stop the boss from moving in blue invasion together with Kristoff (Fl) (and do a little damage, which might improve, might not. Have to wait and see).
So I hope slow from disk and team heal will be restored. If that happens she could be a going up tiers in terms of usefullness (albeit we still have anti-study heroes)