Are you serious? He should not interview to fulfill his dream to become a HC?
He should, but not while his team is in the playoffs.
You can not refuse HC interviews. Coordinators are allowed to interview in bye weeks. The coordinators of wildcard teams aren't allowed to interview this week.
He has to interview now or lose any real chance to interview.
If he doesn't interview now and we keep winning. His first chance would we after NFC Champ game, and most of the jobs will be filled.