anecdotal = based on long professional experience as an it expert
Worked on most aspects of apple kit over the years. Even done data recovery, even there, they screw the customer.
The harddrive file system apple use has 2 layers.
Files are divided into categories and each category is stored in it's own large file. IT means you can get a few more files on smaller discs - again a money saving tactic.
So when the index on the harddrive goes down (the most common issue with harddrives) all you can recover are the large files - what you can't do is get at any of the individual files you actually need.
Every single aspect of apple's setup is designed to screw the customer.
I did once recover files from an apple drive for someone that all her local pc people said couldn't be done. In that case the Index was fine, no idea why anyone else had problems with it.
I do know what I'm doing.
And as I said the older apple stuff - while still massively overpriced - was slightly better made.
Maybe jobs had a bit of a guilty conscience, the people running the company now - certainly don't.