No, that's what he says. But someone who genuinely grew to understand he was wrong doesn't write blog posts like this, explaining how he was wrong, like that's a question in everyone's mind (honestly until now I'd never known there was an end to Minecraft)
No, this is a person who's burning with envy and finds telling yourself stories an outlet.
Or it's a person who burned with envy, is introspective enough to recall that feeling and write from that perspective in order for his readers to learn from his own shortcomings.
Or, it's a writer, who writes for a living, spinning a story to draw the reader in. He pitches his product at the end: he want's subscriptions to pay his rent and buy his socks.
I have no ire towards the author. I thoroughly enjoyed the post and found several aspects of it that helped me find some introspection to something I was talking about with my wife just the other day (regarding capitalism, career, compensation).
I think in the end that's what he's doing. It's an overly long winded way to say he wrote the poem. He's trying to wrestle that recognition for his work he thought Mojang was going to provide him and he's sharing a tale of one artist who wants to live above Intellectual Property law and create beautiful things while recognizing he has to eat and put a roof over his head.
I pass no judgment on the author. I might slip him a few bucks in the paypal link he gave because I acquired Minecraft during beta and continue to play it off and on today and consider his contribution to be a nice addition to the game. Perhaps I will buy his novel. I think he did a great job trying to market himself here.