Actually, I believe static weapon stats are for the best. It is a relief and a comfort knowing that the weapon I want will be exactly that. Not something with exhumed and battle runner. I remember trying to farm for the perfect Imago Loop and Eyasluna. That was a nightmare. Always getting one perk off from what I wanted and rendering the weapon effectively shards. If Imago Loop had simply been a non-elemental Fatebringer I would have been happy. Keep static rolls. More weapons will be added as time goes on. More weapons with static rolls > A few weapons with RNG rolls.