Sooo... am I just incredibly unlucky or does Glyph of the Battle Healer always prioritize the Ghost Iron Dragonling over everything else? It's kinda annoying when you're tanking adds at the Sha of Anger only to see dozens of "Immune" pop up when you punch out a Hammer of the Righteous. And it's not like there was nobody in range to get healed, a bunch of players were close who could've taken some heal.
That also seems to happen all the time in heroic dungeons as there's almost always someone with that thing in the group. Can't imagine how bad it has to be if you have one yourself..
This thing has to be intended to be the main paladin tank healing counter.