Well yeah, I'd be wary of an "all our candidates are MENSA members" staffing agency as well :). But human intelligence isn't quite so easily overfitted to a training set consisting of multiple choice matrices and logic puzzles as neural networks

Sure, I’d probably go the extra step of sorting out any applicant who advertised their MENSA membership…but that’s just me finding those folks pretty insufferable.

But back to the point it’s really more about if the tool for the job can’t do the job…they are the wrong tool for the job. Tool of course being device, AI, or…human.