Admiral Shran wrote:
But they re-intergrated him into the Collective. How is that any different than assimilation?
I'd take this to be that as he was already a Borg they would be uploading the information that he had accumulated while he was separated from the collective.
Whereas assimilation seems to involve installing the physical components necessary to link an individual to the collective and then downloading the necessary information to the individual drone.
To my mind it's basically the difference between backing up 'My Documents' and installing Windows.