Agreed... Aldo had a great career. It's tough to see someone with a career like that bow out in 13 seconds. It has to be uncomfortable/humiliating for him.
I'm sure he didn't want to go out that way. Other than reach, they seemed pretty comparable stats-wise, but looking at them before the fight, McGregor looked way taller, way heavier, way more powerful and way more spirited. It's hard to reconcile.