Actually, somehow I feel Nokia is trying to make it works and look like other OSes out there. On Android (not sure about iOS), we have folders containing app shortcuts too. So, to open an app within a folder, we need to open the folder first then the app. If the user needs to have lots of apps visible within the limit screen area, it is a good idea. Otherwise, just use what we are having currently without folders.
TBH, I have been hoping to see folders for group tiles since Amber. Perhaps it suits my style as I'm also using Android tablets. But can we name the folders like on Android though? I have not update to Black yet also.