Eliminate Security Issues Created by Incompatible Storage Features
File management has been a nightmare for years and OneDrive is making things more complicated by adding to the number of extra steps we have to take in order to have a somewhat consistent experience. Here are just a few problems:
Storing your files on an NTFS drive lets you encrypt, compress, view zip file as regular folder, set permissions, file history, use bitlocker, file tagging, customize data shown in columns, file attributes, using time stamps for various automated or auditing purposes, LAN sharing over SMB 2/3, and offline caching. All of these features can often be put to good use on a person's home network.
Instead of OneDrive expanding the reach of those same benefits, it offers up a storage option that strips away many of these important security features from your files and on their return back to your local hard drive, the files have lost many of their original customizations, which require you to re-do everything, or forget, and leave the files unprotected someplace you can't find since they're not even tagged anymore.