I may have missed it, but has Ford divined the reason(s) for the battery failures? It seems to me that there must be multiple reasons. If it were just one, Ford would have identified it and fixed it by now.
I have experienced three failures that occurred at widely separated times and under no special conditions. Dealership did the "fix" of the day for me. Perhaps now it really has been repaired -- or perhaps not?
We'll never know for sure, but I suspect not as TSB 14-0155 addresses several possible causes.
I had the battery replaced last week after 2.5 years and 30K+ miles of trouble-free driving. The dealer performed 14-0155 so we'll just have to see how it goes.
Now, to a possible early warning: a day or two before the dead car incident, my wife reported that the radio would not turn on. Perhaps this was a precursor to a failing battery.