Smokingfrog, good point here:
http://www.freerepublic.com/focus/news/3428362/posts?page=403#403
If that’s the case (fuddy alive (albeit barely**)) when rescued, then there would be no need to have previously swapped her for a smuggled mannikin.
**See bottom two pix here (h/t rx), one where she’s upright, then other where she’s laying flat
http://www.freerepublic.com/focus/news/3428362/posts?page=247#247
‘Rescue swimmer Mark Peer said when he swam to Fuddy, she was unresponsive and he couldn’t find a pulse. ‘It was not a good feeling,’ he said.’