Hiring manager needs to spend some time being a janitor, preferably not using a floor buffer as I'm sure he'd screw that up big time.
Although, there's a chance it's not the hiring manager's fault though.....if the companies that are offering this tech are dishonestly marketing their system as using "algorithms" or "intelligently matching" candidates for the job. Which, honestly, I could easily imagine.
When I first started looking for jobs as an adult, even like completely unskilled retail cashier jobs were using this outrageously long and stupid "personality quiz", which basically asked the same like 25 questions but in five different ways and it took a damn hour to fill out; and the questions were crap like "if your brother got run over by a truck and you needed $100 for the doctor and you were 100% sure you could have it back the next day, would you steal it from the register?" And you're thinking well duh, obviously you have to answer this one "no", but you also in the back of your mind can't help but wonder if the designers of the test have decided you're an untrustworthy liar if you say no to this.
But yeah, these "personality tests" are complete garbage. The outfits that make the tests market them as some kind of deeply effective methods for figuring out an applicant's values, strengths, and weaknesses, but's it's pseudoscientific BS, the weights and values the test assigns to answers are just the random opinions of the authors. But a LOT of companies literally buy the BS, and pay to use these tests in their hiring process. And it's just true that a whole lot of perfectly normal people lost some job opportunities because a bogus personality test claimed they weren't a "good fit".