Blue zones have been utterly, thoroughly debunked. There’s no reason to still ask this question in 2026 unless a new/unusual population or lifestyle is emerging.
Tell me you didn't read TFA without telling me.
And in fact, TFA is pretty sympathetic to your position, but not as absolutely certain as you are.
Blue zones do exist for sure. That's where you can park your car for 2 hours and have to place a blue card underneath your windshield that tells the time you left it there.
https://nl.wikipedia.org/wiki/Parkeerschijfzone