Since the interview is seen by general population, he was just asking questions that an average computer illiterate person would ask and at the same time challenging and testing her on the subject.
Two of the most common questions I get asked when someone's curious about coding are:
1. So is it all just 1s and 0s?
2. So do you know how to hack?
Sometimes I cynically answer the first question with "Yes, 1s and 0s all day. Sometimes I don't even use 0s, just 1s" which I'm pretty sure I stole from a Dilbert comic, but its funny seeing the expressions I get.
One of the few benefits to working for a larger company rather than a startup - they can afford 1s and the more successful companies can afford 0s too!
"Code doesn't mean anything" is so mind boggling ignorant, it seems more like a cynical and rather insulting caricature of what the average computer illiterate person would ask.