Why are people against playing with their friends? It would draw attention to some new players, and even some hardcoe fans who would like to play with their friends. It would work great since you can even heal others.
Let's lay it out on the table, shall we?
If I wanted to play with friend (again), I'd go and resub LoTRO or Rift.
If I wanted to go and heal others, I'd go and resub LoTRO or Rift, log into my Minstrel or Cleric and go heal.
But this game offers me an open ended world with unlimited exploration... all offline. It allows me a break from raids, trash talking in trade channels, griefing, Bio-breaks, spawnkilling, crafting node thievery, smug elitism, DPS parsers and all the other crap that online gameplay fosters.
The bottom line is this: with the ES series I can go and play a game when I want, where I want (and most importantly) how I want... without the headache of relying on another to do so.