If you follow that through the series of links, you find that it is just an assumption based on one guy who didn't know the project existed thinking unchanged = unmaintained.
Are you sure? There hasn't been a release for 8 years.
I followed the links a while ago after hitting an intialization failure bug that leaves Linux boxes with the incorrect date. I found that neither Arch Linux or Redhat consider OpenNTPD to be supported on Linux.
It would be good if you could explain what I am missing. If there are more recent Linux releases and the information on the Redhat bug tracker is incorrect I would like to know. I'd rather be running OpenNTPD than ntpd.
If you follow that through the series of links, you find that it is just an assumption based on one guy who didn't know the project existed thinking unchanged = unmaintained.