I really don't know about this. Apart from managing the balance mechanics, is this maybe a pitch for competitive esports style gaming, where all players can more easily share the same weapons in the meta?
For me, the variation that came from different rolls and the full-on joy in getting a really, really good one, is so much fun (if frustrating sometimes). I got a god-roll Saladin's Vigil the first time I went to Archon's Forge and didn't even know it until much later. So many good gaming stories come from that roll or this roll, and I guess I'll miss that.
Will these weapons just be much more rare, in order to encourage the loot grind? I wonder.