It could do. One thing about mystery shopper is that it's anonymous. We know that a lot of small businesses are always concerned that if they make a complaint about a process, they'll somehow get blacklisted. I think that is a barrier to businesses of all kinds complaining about experiences they have. I think that might be helpful.
Evidence of meeting #127 for Government Operations and Estimates in the 42nd Parliament, 1st session. (The original version is on Parliament’s site, as are the minutes.) The winning word was women.
A recording is available from Parliament.