Well  it is a good read  and  while I disagree with pos  as the solution  I do see that this is a real problem.

He talked about BCH  I think his  idea  could be done but that  bitmain would need to be in on a BCH attack since they  have enough hashpower to defend the coin.

It certainly could be done with ETC  vs ETH


Nice hash has
4400gh of hashpower for rent to mine ETC or ETH

https://www.nicehash.com/marketplace/daggerhashimoto

ETC has 6000gh to 11000gh
https://etcchain.com/chart/hashrate