The commenter wasn't saying that everyone they talked to was in that category. But rather that one person they talked to who basically tanked the whole interview for them. You know, the one who reported back everyone about what an uninspired dolt you are because you didn't answer that "Tell us about your dreams" question with quite the level of gushing enthusiasm they were expecting.
So what are the odds that you'll run into at least one person in that category, in a random tech interview these days?
When we take into account how toxic and culturally dysfunctional the tech industry in general has become in recent years -- I'm speaking specifically of it is huge vanity problem (from which this "we only hire the best" nonsense stems); combined with its insatiable addiction to bullshit and the cargo-culting of bad practices (and its worship of dumb and/or useless interview questions specifically) --
actually, fairly high.