It miraculously uses very similar patterns.

> It makes sence that Amazon would entirely forget to provide 'cancell subscribtion' button and will keep taking your money forever'

"Bad" I would say means you can still achieve your task.

I was presented with over sixty download links, and not being an idiot or someone to be taken for a ride, I refused to go along with it, and that means the UI is not bad but failed.

What's more, it OBVIOUSLY failed.

There's no way a single person at Amazon could have genuinely sat there and thought, "yes, this, THIS is it, THIS is the right way to make this page", not, that is, if their goal was the user actually getting hold of their data.

As far as never ascribing, if a company is super big and rich and would find it beneficial if people give up trying to do something because of bad UX I think it's a reasonable assumption that the bad UX is an example of a dark pattern. Otherwise this helpful concept to describe actual things that companies do to tire out users and get them to relent in doing things the companies don't want done would have to disappear.

TLDR: If what Amazon is doing here isn't a dark pattern, what is?