A few more thoughts....
Someone needs to get SVT on the phone about this incident. Based on the description of what happened, Ford is on the hook to make people whole here. The trucks were being used as intended. There's an owners manual supplement that explains how to do it, and a tremendous amount of marketing has been done to show that these trucks are designed to handle this treatment.
Note how it doesn't say "do not attempt". It says "do these things before you do this."
Given that it was 10/14 trucks, and assuming the data provided about this event is accurate, I can't imagine Ford/SVT giving anyone grief about replacing/repairing the damaged trucks (including trucks out of warranty). I've heard the word "litigation" mentioned but I'd be severely disappointed in Ford if it came to that. If these trucks failed in the manner described, Ford really should have your back. They're fools if they don't, the damage to their reputation will dramatically exceed the $500,000 it'd cost to replace these trucks. I wouldn't try and deal with 10 different dealers to repair it...deal with Ford/SVT itself as a group.
Probably the best way to start is calling
1-800-FORD-SVT.