I was one of the few players lucky enough to buy my [armory]Gjallarhorn[/armory] on the second week the game was out, when Xur originally sold it. No one has ever told me I didn't earn it; no one really cared then. It's a sweet gun and the method of procurement doesn't change its value or usefulness. RNG can be a cruel mistress, so it's nice to have Xur to balance things out at the end of the day. Hopefully this will encourage more people to Raids, more to Prison of Elders, and expands the player base for the endgame.