I would like to see this on the scoreboard. I would also like to see players value their life more. Staying alive is more valuable than getting a kill, only to die a second later.
I mean part of the job of being a tank is to take damage, specially to help charge Support ultimates as Kiriko ult might be the strongest ultimate in the game. It used to be the tricky part of playing double bubble as Winston wanted to make sure Ana got her Nano asap but also needed to not die.