Meh. NTP is just an awkward less accurate frontend for GPS these days.
It's so easy to run your own NTP server. You can set up a pretty decent one using GPS PPS for like $200. My home ntp server is good for +/- 1us if you believe its ntpq stats...
This isn't like DNS. Everyone can run their own local NTP and that's fine. The only true shared infrastructure is the GPS constellation.