That’s one option to fix it. It’s not fun in the slightest when your just a target locked there.
I’ll inject an idea just because I’m not really suggesting how it could be fixed and just saying Rez is a problem.
What if Rez became something like Angelic Light and had an effect like a Lucio’s amp it up?
What if they water down her ult to an ability that replaced Rez. Make a new Ult called “Batlle Mercy” she sheds healing light in an aoe heal and auto equips her blaster.