A zoomed-out view on healing

My newsreader is full of blog posts complaining about LFR in World of Warcraft, and a lack of healers. Meanwhile Pete from Dragonchasers writes about Defiance saying: "In theory you could set yourself up as a kind of healer but I’m not sure there’s enough there to make that a rewarding career path.". To me the two cases look like two sides of the same coin, with the same core problem. And it is a problem all collaborative multiplayer games with different roles have, even pen & paper one

World of Warkraft...