Agreed. One of the rework suggestions I’ve had that addresses not only her healing, but also her skill expression, impact, agency, and rewarding play can be found here. It’s certainly one of many idea’s I’ve had, but if you want, do feel free to give it a look. It meets the middle-ground of both lovers of Valkyrie, and Mass Rez as well. Titanium gave some amazing suggestions in their thread as well, which is one of (if not the) most popular threads in the forum. Highly recommend checking that out as well. 
~Sincerely Yours xoxo,
a Lover of True, Fair, and Fun Balance.
xavvypls 