Thanks @MalithHatananchchige, I really appreciate your reaching out and providing some clarity. This really helps, and I’m glad to see that you’re open to improving processes in the future 
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Regarding the removal of the nodes from the subnet, can I ask why this was not a proposal to swap in a good node (so that the subnet topology, in terms of cardinality, is not formally modified)? I’m still of the impression that this proposal should be rejected, and replaced with a ‘Change Subnet Membership’ proposal (as highlighted there are plenty of spare nodes to swap into the network). This would then free up your CM1 nodes so that they can be removed from the wider network and redeployed with IPv4 and IPv6 addresses.