Yep, agree to a point. Good remixing involves transformation, taking one part of another whole and doing something to it, otherwise it is just a copy, which isn’t a bad thing as long as the source is attributed.
Looking a bit further into the Tatty Devine issue (it involved the Daily Mail, now I feel dirty) the examples of ‘copying’ are becoming tenuous:
The Matt Blatt case now means every furniture copy they sell is now labelled ‘replica’. I wonder if this loophole will be used in the future in other industries:
http://www.mattblatt.com.au/PlayVideo.aspx?element=113&category=1&ProductId=1517