I think a hybrid system might be the best way. Keep the static rolls on the guns that we have but introduce random rolls on guns from strikes, public events or unique enemies. That way the average player can have a decent gun and people who are hardcore (like me) can grind strikes or public events for god roll guns. Bungie could also govern which perks could roll on the random rolls to make sure that they're unique to the user but can't be overpowered when compared to fixed roll guns. Currently having nothing to chase is really hurting the game.