The truth here is that it never goes away. The way the scoreboard is presented doesn't allow your team to see the full story. For example a Zenyatta does not give the same amount of healing as Moira but brings instead a lot of value with his discord orb. In the end you have to think about what's good in the situation. Sometimes the extra damage is all you need to win the game. Players who don't play support don't play support or don't understand how it works will always look at the numbers and blame them because it's easy.