Afterwords NPM came out with a blog post[2] where they went out of their way to take as little blame as possible and basically said it was the developers fault. They said they "stand by [their] package name dispute resolution policy, and the decision to which it led"- basically ensuring that no developer should ever trust their repository in the long term, as they'll happily hand over any package name to a corporate entity if that entity asks for it.
The weird thing is that they claimed to make it impossible to "unpublish" packages, so that developers could no longer rage quit their site, but apparently they didn't extend that new requirement to their own "security" systems.
[1] http://azer.bike/journal/i-ve-just-liberated-my-modules/ [2] http://blog.npmjs.org/post/141577284765/kik-left-pad-and-npm