I imagine PG is rich enough and influential enough in the tech/VC space that he doesn't have to signal anything he doesn't honestly believe.

It's unsurprising he would believe LLM coding tools are a productivity boon, but using code quantity as a measure of software development progress is one of the most famously wrong ideas in the software world. Either he wrote carelessly, or he believes that LLM tools have changed that reality.

I'm inclined to think LLM tools haven't substantially changed that reality. LLMs perform better when more of the problem fits in context, so succinctness remains valuable.