I believe that explaininjs is making a pedantic/semi-tongue-in-cheek joke about the gimmick of Jeopardy where the clues are "answers" and contestants buzz in to respond with the "question". https://youtu.be/KDTxS9_CwZA?t=156

It would be pedantic if it were indeed nothing but a joke, but I think the existence of this gimmick forces us to assimilate our non-joking language in order to avoid ongoing problems. Easier to have common ground among participants and onlookers than not. To exclude yourself, should you wish, simply stick to clue/response.