It would be nice if you allow to see the folder structure for all media files that users upload and allow to choose where you want to upload some files.

A good use cases would be when you use some type of pictures over and over again and can automate the process a bit. For example, always upload all your employee portraits to the same folder and when creating new emails with different people instead of manually searching for them in the gallery you can just change the file name in src parameter because you know that the needed portrait is already uploaded to the needed folder