NTFS holds up quite well when compared with more "traditional" filesystems such as XFS, ext4 and UFS (except the choppy I/O performance, but as someone else said above it might be more of an issue of the subsystems above it); it has much more functionality of almost anyone of those I mentioned above (for instance, I really don't understand why so few filesystems support transparent compression).
I think that filesystems like ZFS and Btrfs are simply one step ahead than anything else, not only in features but also in tooling and UX. Send/receive, CoW snapshots, checksumming are all tremendous features that I think would fit fantastically into the Windows workflow, if Microsoft really managed to integrate them well. For instance, I think a ZFS-based Windows update would be able to do away with transactions and rely instead on datasets to snapshot the system, apply an update and rollback everything if something broke, exposing to power users the tools to clearly understand and rollback their systems themselves by hand.
Obviously all of this can be achieved by rewriting everything from scratch as in house, specific platforms, but I just feel that continuing to replicate in NTFS/ReFS features other open and widely supported filesystems have had for almost a decade is just not the best way forward, and it's not really better for anyone.