Judges asking things that are obvious to us make for great headlines and quotes, like "what is a website?" or "what is an API?" and "shows" how out of touch they are, but like a judge (trying to) define pornography, making sure the plaintiff, the defendant, and the judge are on the same page seems to me (I am not a lawyer) just good procedure. First everyone has to agree on what a website or an API is before passing judgment on legal matters concerning them that all parties will abide by.