I agree with some of the commenters on the speed aspect not being that bad with crypto.
Also, there is loud criticism about crypte consuming way too much energy to make a transaction happen. BUT, it does not take into account how much resources the whole organisation (let it be a bank, or even Visa) consumes while one transaction happens. Would be an interesting comparison imho.
Anyways, the article nails it. I will redirect my friends who ask what crypto is right here :)