I wish I could agree with you on that one. Unfortunately though, it is common knowledge that the Necrochasm does not have the power that you would expect of a Raid-exclusive Exotic Weapon, it requires some serious attention. Any gun can be useful if you adapt to and use it correctly, but have two Guardians with identical stats shoot at each other at the same time, one with Necrochasm and the other with Vex Mythoclast, the latter will always prevail I'm afraid. I love my Necrochasm, I use it all the time, it is still quite good for PvE if you use it efficiently, but I think we can all agree that Vex is way stronger.