If you put Puyol you have in mind from X year (you name it) to play CB at one of the next Barca games instead of Araujo.
Would he be able to cover ground as fast as Araujo? NO
Would he be able to win aerial duels as frequently as aRaujo? NO
Would be be able to not get dribbled past as frequently as Araujo? NO
You have it why then.
People idolize the legends of club so much that they infatuate their abilities and eventually distort reality.
Football is ten or more times faster, more physical, and more intense than it was 10 years ago
All those things you wrote, especially about being dribbled past and aerial ability, are literally things he was amazing at and renowned for. He was the definition of a rock and his aerial ability was one of his best skills.
You can't even really compare them properly because Araujo was literally playing in Segunda B a couple years ago whilst Puyol has won everything there is to win in football and marked some of the best attackers in history.
You say Puyol wouldn't be able to cope with modern football when he has gone against legendary attackers like CR7 or Klose, Whilst Araujo last season was getting sent by the likes of Kenedy and Suarez against Granada. I love Araujo but there is more levels in football than you think. Its a big difference marking CR7 and marking Rioja from Alaves.
You try and put Araujo against prime CR7 and see how he does and then write here about 'athleticism'. Puyol went up against some of the best athletes the game has ever seen.