Earlier quoted context omitted.
To be fair, they likely get a lot of applictions, and some portion of those applicants may be mentally ill in some way, possibly on drugs, or may otherwise be truly abysmal employees who don't care about anything. Tests like those can weed out people who clearly shouldn't be considered. They have no place at a serious company hiring for a technical position, though. Usually 10 or so minutes of face-to-face talking is…
the problem is discrimination lawsuits. an old person contests a no-hire decision with "I wasn't hired because I was old" option A: Hiring manager says "well I just thought you were a jerk" option B: An objective and universally applied test scores the applicant as being 95% jerk, which is above the 60% cutoff that the company uses globally which would you rather defend yourself with?
Once the company asserts this defense, the plaintiffs ask for demographic details on every employee in the company, and what the scores were at time of hiring.