it has furthered the decentralization of stake

I think that is very debatable. Many of the largest stakeholders have gained enormously from it's actual results (as opposed to the intent or theory) through a variety of schemes including but not limited to bid bots. Some smaller stakeholders have certainly benefited but to talk about "decentralization" in the aggregate you need to consider the full spectrum including the enormous earnings at the top, and the conclusion looks shaky to me.