Nope, because "god rolls" aren't as drastic now. The only thing that reintroducing the re-roll function would do, is remove any and all fun from the loot aspect of the game. Plus; why would you bother getting any new weapons if you've got your perfect full auto pulse rifle with maxed stability, perfect scope and crowd control (for instance) from year one? It could be the epitome of weapons for you, and hence all other loot would be redundant. They have to keep the loot system in motion, or else the game becomes stale.