Yeah, I don't know whether I believe they actually found 18,000 people and somehow sorted them accurately into high and low performers.

I've worked with people who don't like teamwork because they're afraid of being discovered as not knowing what they're doing and others who can't compromise on literally anything, so claim they're the smartest and best and nobody can keep up. All have in common that in the long term, the things they build are unmaintainable Jenga towers nobody else understands. The rest of the team used 5 people's input to build robust systems. The silo workers just had themselves. It shouldn't be surprising that even with design and code reviews, what they create isn't as good.

They also have in common that they love to be called "lone wolves" because it makes them sound cool. I'm about 99% sure this article was written by one.