You're trying to ship a game. This writer keeps hitting your inbox with prose that I assume that is about as annoying to read as the original article. He's wasting your time and not getting to the point. You don't know what the guy's deal is and you stopped trying to figure out two emails ago. Compared to all the other things that you need to be doing to actually ship the game, this is incredibly minor and taking up your time daily. You finally tell him, "look, it's 20k or we go look elsewhere".
From that story, the only thing Mojang did wrong is that they didn't send him the contract straight away. We all know he would have signed whatever was on it back then, as he clearly didn't know what he wanted. Looks like someone regretted behaving completely irrationally when closing a deal, then regretted it some more than he never attempted to get more compensation even after the fact (he could have easily gotten something a couple of years later if he had tried, and once more the article completely omits as to why he didn't try to reach out through his agent or anyone that can behave as an adult after the launch) and is now screaming at the universe that he's not being showered with riches and glory when all of this was his own doing, even after he had multiple opportunities to come out winning.