Several of the core problems he points out still exist today, I think reactions to this post as "aging poorly" make the future of mining decentralization look pretty bleak as it reveals both a lack of awareness by Bitcoiners and a denial of these risks.

Peters biggest miss here is thinking that these centralization forces would be bad for price. Bitcoin can go much much higher before we realize it's too late to solve some of these things, I expect it to be at least another decade before we look back and wish we were more recognisant of minings problems.