What if "Damage Healed" in post game statistics only applied to healing teammates?

Currently the damage healed bar applies to some but not all (Not sure why some are excluded) self heals, meaning that every support who looks at it after a game to see how much they healed their teammates doesn't get a clear idea of how well they did. It also means the jungler is often at the top of the list. If the bar excluded self heals then supports would have a much better idea of just how far their healing is going. Thoughts?