Not sure about this. It’s not as if Azer revoked any license associated with his code. The code is still out there, it’s still open source, it’s just in other places. So this is more about the distribution and access side of things, like if Red Hat said they won’t ship Linux on CD-ROM anymore.
I’m really curious what npm is learning from the whole thing and what consequences it might have regarding the structure and policies of the package manager.