Users do generally work with files, but they also group their files (with folders).
If someone's working on their thesis, then they probably have supporting data (e.g., images) in the same directory as their text. If they search for their text, they likely want to open the folder containing it so they can easily access all related material without having to search for each one individually.
Removing the need for deep file hierarchies is great, but users need some way to group their files and that group needs to be accessible from the search.
Users do generally work with files, but they also group their files (with folders).
If someone's working on their thesis, then they probably have supporting data (e.g., images) in the same directory as their text. If they search for their text, they likely want to open the folder containing it so they can easily access all related material without having to search for each one individually.
Removing the need for deep file hierarchies is great, but users need some way to group their files and that group needs to be accessible from the search.