Oh you will come to learn the true costs of running a masternode my friend.
The key thing about the miners is that they simply have to be good at mathematics to prove their worth. They need to hash fast and nothing else.
They don't need to hash fast at all, PoW exists to try and ensure decentralisation of whatever that total hash is, that's all.
This is where it's going.
If you have to have a Proof of Stake measured as a Proof of Service, why not require the same to mine at all? Just like the MNs are now, instead of hashrate being the decider, size or Proof of Service could be? Or both? Have to knock the idea around. Reducing wasted energy and the silly of ASICs may be a feasible and non-detrimental goal if seen through that lens, but a means for doing it would have to be conceived, and that does not yet exist. I'm sure Evan has already thought of it and just hasn't said anything cuz he's busy.