I believe that removing these 2 commands would bring great benefits to the server. I agree with you, these permissions do nothing but bring problems. This is where all illegal items come from. I think that if someone wants to play around with W.E or GMC, they should to that in Creative, there's a reason why this minigame exists. Whenever there's a wipe, I start from scratch because it makes zero sense taking all of the items from GMC, there isn't any effort put in there and the whole idea of "Pure Survival" is ruined.
I hope that a positive verdict comes out soon.