Ok well, the same thing could be said by any organization in the world regarding any dark pattern ascribed to them.

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?