What is the proposed solution to prevent possible abuses of power in private situations such as job interviews or auditions?
A one on one audition or job interview or private meeting in a hotel room or other private room where there is an imbalance of power such as teacher -student, or coach - player or director -actor , should be a criminal offence.  All you need is a camera outside the door in the hallway, and they're done.  The cost of film making, etc will go up, it's worth it, I'll pay more to see the stupid movie.