A massive failure of management put an entire project on a single guy who couldn’t do it. And somehow it’s his own fault for trying his best.
Why did management make such an obvious mistake? Because they desperately want to believe in rockstars. They all have the fantasy that every time they hire someone they’re buying a lotto ticket, and they might get the ONE GUY who can single-handedly produce millions of dollars worth of product. And when they thought they’d hit that jackpot, they held onto that comforting fantasy victory for as long as they possibly could. (And in the process, ruined a guy’s life, and set their company back for years.)