Honestly, that's where the article becomes totally bizarre. ETH is now worth in fiat 3000x more than in 2015, and miner's expenditures are in fiat. So instead of cutting mining rewards by say 95%, it got cut by 25% and that's somehow evil?

Miners don't earn 40% less, they earn 180000% more than back then. Of course not individual miners, but as a "working class".