Products like TurboTax have similarly tight schedules and limited ability to patch. Business platforms like Oracle have massive game-like performance-intensive C++ codebases. Operating systems like OS X or Windows 7 also have big teams, tons of art assets, and a fixed ship date. There are a ton of software shops out there that can learn something from the author's original post.
Many of us on HN have the luxury of building server-based web apps. We live in a very pleasant world with minimum viable products, small codebases, and rapid iteration. However, let's not fool ourselves into thinking that this is the world that everybody else lives in.