Absolute nonsense. There is no cookie-cutter formula for game development, despite what the idea guys think. Mario 64 was literally just Mario in a single small room until the last six months of development. They focused purely on the actual game - the mechanics, physics, movesets, items, and enemies - inside that tiny room until it felt perfect. Then, in one final push, they quickly slapped together all the levels and the storyline at the very end.
We are very quickly going to see the reality: games are made by programmers. Everyone else who has spent decades comfortably riding on the programmers backs is being replaced by AI. This includes the artists, the junior programmers, the testers, all of them. The future isn't bloated teams, it's going to be just one lone genius (or a small group of programming geniuses banding together) and his magnum opus across the board.