How did you get "unshakable belief" from that paragraph? Interviewing is inherently messy, imprecise and unscientific. The process involves a lot of guesswork

How did you get "unshakable belief" from that paragraph? Interviewing is inherently messy, imprecise and unscientific. The process involves a lot of guesswork and feeling, rather than accurate measurements of any kind. It creates a fictional work environment that is often stressful for candidates, so any signal you may get out if it is also inaccurate. It's natural for interviewers to have a preference for certain questions, topics or ways of conducting an interview. You're free to disagree, of course, but claiming that your way is superior is silly.