It tells more of the interviewer than the interviewee. They don't ask the questions you mentioned because they don't know or they don't know how to best judge

It tells more of the interviewer than the interviewee. They don't ask the questions you mentioned because they don't know or they don't know how to best judge the answers. They asked the questions they know well, that show you what the breadth of their knowledge is. It's like the saying A-players hire A-players while B-players have a hard time judging A-players.