His solution was clever because the problem was artificial, constrained, and required him to be creative. He went to a solution he knew well, and the interview

His solution was clever because the problem was artificial, constrained, and required him to be creative. He went to a solution he knew well, and the interviewer didn't ask to change. If you solve this problem and use strings to do fizzbuzz instead of modulo, would you accept me saying that you're a doofus that doesn't know coding simply because you didn't do it the normal way?