Sure, but if, like me, you have a server hosted elsewhere that doesn't install from the Debian ISO but is rolled out from a template that auto populates the hosts file with both IPv4 AND IPv6 you may find yourself mighty confused.
I am sure it's not a major undertaking to make this...
Personally I feel this should be fixed as a bug fix. I found this 'fix' by google, the people that were awake in #Proxmox were unable to give a defined answer about how to fix it.
Perhaps a .1 version bump is in order ?