j_t, if you were involved in aircraft design, perhaps you might be able to dig a bit and provide us with more information on fin design requirements. In addition to the above examples, I have been stuck on the ground in typhoon conditions in the Far East, and have seen from my hotel room window 747’s parked directly across the path of the oncoming storm. Those fins were subject to a sustained broadside (several hours) of 100 knots or more, with frequent gusts to 150, yet to my knowledge, those aircraft were not subject to any special inspection procedures afterwards. The only conclusion I can draw from this is that brick shathoose strength (technically speaking) is a basic design requirement for that particular aircraft structure.
Perhaps you can enlighten us with the facts.