I'm not clear what you are trying to suggest with that link. The whole point of the claim in the article around sorting is that in Aurora, for using disk to so

I'm not clear what you are trying to suggest with that link. The whole point of the claim in the article around sorting is that in Aurora, for using disk to sort, postgres only has access to a relatively small filesystem that runs out of space and can't use the Aurora storage that is actually backing the database.