jalapeno: that's wrong. It means that if xyz.com is a NSI name, NSI can't get the WLS slot in the last 60 days, but another registrar can.
Furthermore, not that they used "60 days before DELETION", not "60 days before EXPIRATION". Since NSI hoards names, this means that they just need to wait an extra couple of months, and then hit the delete button, instead of deleting before then, to comply with the 60 day paper-tiger.