Waymo isn't LLM powered. Everyone who thought LLMs would make Waymo Driver obsolete were wrong. In part because Waymo can't be spiky. In part because practical applications of AI require a lot of time and effort.
I am amazed at how usable and useful coding agents have become since they were a hot mess about a year ago. I would not be at all amazed if there are only one or two other use cases that have the same favorable evolutionary trajectory.