That's not the point, the point is they can generate pretty good code, and do that most of the time, so ask them to generate the code, review it as you would review a more junior teammate or an opensource collaboration from an unknown source, and take advantage of their speed to test everything.

You can't make a great vibe-coded thing that you couldn't make yourself, but you can get pretty much the same code you would have made in a fraction of the time.