Typhoon, with all due respect (despite your last sentence), YOU miss the point entirely. If the repaired hull of a boat/racing yacht subsequently fails it is unlikely to be fatal - inconvenient if you have to man the life rafts. Any subsequent failure of a repair in flight is highly likely to be instantaneously catastrophic to the aircraft i.e. in flight break up.
Not necessarily. I know there are quite a few boaters that have craft that go over 100 that would strongly disagree with you. Unfortunately, there have been example fatal accidents due to hull failure, and this is especially true of air entrapment hulls and pad vee hulls that are very sensitive to input and balance. Hitting the water at 100+ can sorta be hazardous to your health.
I kinda sense a little bit of snobbery here... try squeezing your nose and say "no boat patch kit couldn't possibly be adequate for my carbon nano-tube polymer aircraft."
No doubt composite repairs on the 78 are mission critical, but I think what others are trying to say is that use and repair of composites have many years of precedence in other high performance applications.