Well, I managed to farm a key, but crickets are about the only thing killing the Dragon in the lower level ranges. I think we had 2-3 people in my instance. If this is how the event plays out, I'm not gonna waste my time on it.
To keep this constructive: perhaps expand the lower level ranges for the dragon instances so that the lowbies at least have SOME chance to have a shot at the dragon. That or make it solo-able. Or add sigils to the mote store.