It might be a joke, but the problem is real.
It's not wether one takes things seriously or not, the point is the discussion itself. If a joke or a mere word could lead into an important discussion, then so be it.
Even without the joke, the discussion would have come up anyway, one way or another. A lot of important discussions started because of a joke. The jester in the king's court is responsible of bringing important matters to the king's attention without offending the court.
Thank you for bringing up the joke, Karaa-san.