Ravenous Hunter not coutned in damaged healed

I do not have a link for this, but I'm trying to figure out which is better overall: Taste of Blood or Ravenous hunter. I know it depends on a champion to champion basis, but as I'm looking at the end of game stats page, I realize that, at least in one Xerath game that I played recently, ravenous hunter did not count as part of my damage healed under the stats tab. However, when I go into my runes page, I see that I healed double off of ravenous that was not counted in my damage healed at all. Is this some sort of bug, or is there a reason that ravenous hunter is not calculated in the damage healed at all? I do not think this is some sort of bug, more of just a small oversight from the team that codes this kind of thing into the game. If it is some sort of bug, I really hope it is fixed soon, but if it is just an oversight, maybe there should be a change so that we can see how much we ACTUALLY heal, versus just leaving out 66% of our damage healed in our stats page, so that players can change their rune pages, which gives players certain advantages in certain points in the game, accordingly. Much love, Just a Concerned Player