I totally agree with that (probably because I also experienced it in other mmos) , farming for an item that only have a % chance to drop and hoping for RNG to drop it with the desired traits and armor weight isn't a good concept I think, mostly when the dungeon itself reward nothing interesting but the final boss helm.

Would makes more sense to drops badges and end up buying the items we want after let's says 50+ unsuccessful runs (runs in which we didn't found the item with the right trait/armor weight) , so while we didn't get the item, we atleast farmed enough badges to buy the item we initially wanted.

Makes farming less random and more like a concrete goal.

Lucky people will still get their items in few runs, and unlucky people will get it after a lot of runs but atleast they will have the confirmation that they will get it, even if that means doing 50+ times the dungeons to farm enough badges.