the human isn't needed at all at that point.

Yes. This is the point they were making. On the current trajectory, and very soon to boot, many tasks — like writing code — will be entirely automated. That is exactly the goal of nearly every corporate player with any skin in this game, and for better or worse, it looks like this will indeed come to pass.

What value that leaves for human endeavor and understanding in these areas is an important but entirely separate matter.