Maybe these oddball DNS names should "include" the callsign somewhere. I do personally know of an instance in 2005/2006 where there were some non-amateur servers in North America using 44 addresses!
the DNS functionality is a separate module and is not tied to the name of the IP/subnet, not everyone uses their callsign as the DNS name
But that is a license requirement! We need a mapping between IP address and callsign for legal use of IP on amateur radio.... (ID requirement)
Perhaps in the US, I don't know, I'm from the UK, not every country has such licence requirements. Have you looked at the ampr.org hosts file recently? There are a lot of A records mapping 44/8 IPs that are clearly not based on callsigns.
We are also allocating subnets out to people experimenting with BGP announcements and other projects that will require more flexible arrangements.