3engnever, the article states:
Following its conversion into a two-point tanker...
So if that isn't a KC2, what is it? The flight deck will still have the MSO's station, the tanker military wiring and plumbing will still be present, as presumably will certain antennae... Clearly the AAR equipment will be removed, but will items such as fixed (inoperative) DASS sensors be removed? Sufficient 'military' equipment will still be present to preclude the aeroplane being flown to Cuba in Thomas Cook use, so it clearly is not a straight A330.
The A330MRTT received a civil Type Certificate some time ago.