Can people stop running away when we're trying to heal them

Wanna preface this by saying I'm a flex player that can comfortably play at least 4 characters in each role, so don't think I'm some support main crying.

With that out of the way, I can't tell you how annoying it is to play support and be healing someone who's about to die and they keep running away from the heals I'm giving them and then die while SPAMMING the "need heals" ping. Like jfc, if you see you're being healed, why run away from the healers and die, then cry about not being healed???