Someone's job performance over time depends on lots of different factors, many out of the control of the company. Understanding someone's potential and risk can be the result of conversations about what they have already done and possibly looking at what they've done. No irrelevant puzzles needed.

A company could probably save lots of time and money by cutting some of the fluff in the process. From the pov of a candidate with a good job already testing the waters, these companies come off as trying to hard to add objectivity in situations where it doesn’t exist.