When a human first saw a photo did he say 'an etched memory of me' or did he say 'it's a new cool thing called a photo and it's of me'

In the same way I don't think there is anything wrong with the concept of file as long as the abstraction is fairly simple to understand.

I say don't assume humans are stupid. Let them choose if they like files or task based os's. Don't indoctrinate designers to belong to only one school.

I say why only two schools - there could be better abstractions out there.

Think. Imagine. Make a new abstraction. Don't take one of the two existing sides.