I hope you find car horse funny. You're right. Though I do think the millions of robots he sees will be purpose built or special purpose built. I suppose a humanoid would be special purpose.

Perhaps most of our robots won't be human the same way our cars don't look like horses. But you can ride a horse on a carousel.

https://www.autoweek.com/car-life/classic-cars/a32300981/this-horse-shaped-car-is-not-quite-as-dumb-as-it-seems/

Unless a tangible thing is being pushed to market, there's plenty of reasons to just smile at his pronouncements.