I doubt MS "burrows" (I think you mean "buried") WinFS. There were likely many good lessons learned from that project about file systems, and there were a few u

I doubt MS "burrows" (I think you mean "buried") WinFS. There were likely many good lessons learned from that project about file systems, and there were a few useful outcomes that are present in the current NTFS. You don't know, what you don't know until you try stuff. It's called research.