Well that and his belief, while at comma, that how fast you can code is the most important metric when assessing software engineers.
Competition programming is fun to watch but a poor indicator of maturity or success. In many systems it doesn't matter how fast you arrive at an answer. Increasingly it becomes important to arrive at something close to the right answer and to be able to show your work and prove to others why it sufficient and suitable.
Still good for a hot take though. I hope time off will help him cool down a bit.
Programming all night in a do-or-die mode is fun and all until you get a bit older. For many people who lived this life they realize only too late that they didn't spend enough time making friends and building a community around themselves of genuine relationships.
Update: I should also say that despite the weird god stuff and what-not; a decision to leave a company because it has changed and you're no longer a good fit is a HUGE decision and one that is often not made by founders. Massive props for that.