He probably imagines Gladwell's claim to be, and I'm quoting from Outliers, "In fact, researchers have settled on what they believe is the magic number for true expertise: ten thousand hours." You'll note this unequivocally contradicts the claim you just made.

That Gladwell later wrote a much, much less popular article for the New Yorker in which he walked back that totally outlandish claim doesn't justify indignation at people remembering what he wrote.