Why shouldn't they? I personally like the answers and use them often if I'm trying to find a fact, like when someone famous was born. If someone is going to blindly trust Google without verifying and google doesn't try to answer, they'll probably just trust whatever site is listed first anyways...
Wheat is one of those plants that humans have mastered. One person can farm thousands of acres of wheat. Generally that's only true of plants that are very uniform and that you wipe out each harvest. It would be very hard to replace it with a plant you can't use the same techniques on as the labor would be 100x probably.
There is one tiny little mention of Waymo in there but that's clearly the main push for Google in robotics now, and if that's where those robotics aquihires went maybe that's what they wanted.
It would make it hard to pretend that the DDG results were much better than those irrelevant Google results that more fanatical Googlephobes insist they get.
Can't really blame him, it might seem kind of arrogant to refuse to do the task they give and propose one yourself, although it is pretty impressive that you could do something useful on a codebase you haven't seen during the code interview.
The way it was published does not lead me to believe that story. The link to the document riffed on documents whose authors want all Googlers to read them and fix their broken ways.
I`m sure The first driverless cars for the public will start being available for rides in Silicon Valley or AZ and just on the regular roads they know very very well. I've still never seen one on the highway.