Throwing it all at VW imo is a nono, however if they wanted to make a new event which rewarded all 3 that would be nice. I think it would be weird to have them all drop from the Empyrean event, that's like saying Alex Purses should have a chance to drop form ADL, or that hundreds should drop from Salvage II bosses, it doesn't make much sense, your putting 1 weapon type's items in another weapon's path.