Exotics were originally the ultimate rewards in Destiny; we piloted rollercoasters of emotion in our journeys for exotics, and we reminisce over those journeys after we've got those exotics. That being said, I believe that the worst mistake Bungie has ever made to this game, was Three of Coins. Of all the things Destiny 2 shouldn't repeat, it shouldn't repeat this currency. Be generous with loot up to legendaries, don't do the same for exotics, so that they are truly exotic in rarity. The drop opportunities were proper the first year around.