Not to worry, Fuddy provably lives, as shown in #247! Upon FH's and the pilots confirmation of her extraction and successful replacement, FH begins his trek to shore as seen in the following graphic:
The videographer called them all to shore some 45 minutes after ditching (as heard in the ABC video). He obviously considered it feasible. FH proved it, even starting about that time. Why did only person do it? Why didn't FP make that call 45 minutes earlier? They were only 50 or so yards closer to shore there than they were that when at the original crash site.
That videographer sure is cruel to make seriously injured passengers wait an extra 45 minutes out on the water when the townspeople that had gathered at the airport should have been able to get them out quickly.
Fuddy is dead. If you could go back far enough in my posting history, you’d see that the only two images I ever posted were one of Fuddy alive, for comparison, and one of her dead. In the dead pic she’s drifted well away from the rest of the group. Although it was shot at something of a distance, it’s clearly Fuddy. It’s also, apologies to her family, a death’s head. As in, she was VERY dead.
I know I can’t convince you. All I can do is tell you that I am personally convinced. The reasons to need Fuddy dead far outweigh an unmanageably elaborate plan to keep her alive.
That’s my conclusion, ymmv.