Except that millions of developers routinely make use of file permissions; as evidenced by this discussion, many - perhaps even a majority - haven't heard of alternate data streams.
I really like NTFS as a file system... seems to offer a lot more than many other file systems, and pretty interestingly so for as old as it is now. That said, hopefully broader adoption can happen when the patents expire (ugh, in 7 years). Maybe the "new" MS could be convinced to create a royalty-free spec release/promise.
Would love for NTFS to become default for external storage, I already use it, but getting it on macOS and Linux isn't always as straight forward as it could be. NTFS-3G ftw.