That's all true and all well & good, not to mention that many times the expectation exceeds the reality. However, removing oneself from immediate impact is usually the best course of action even if it turns out that you could have ridden the storm out. When Katrina hit, even though I was 90 miles from New Orleans, we had a giant Oak tree fall in out back yard. Byt the grace of God it fell in the only direction that afforded it room to fall without damaging anything. Had it fallen in another direction I would have lost the house.
So you never know what it is that is going to cause the real danger after the storm hits.
Always easier to come back & pick up the pieces than it is to sustain an injury or death.
All across the prairie states, even if you are never in a tornado it's a pretty good bet that you will have straight winds of seventy miles per hour or more a few times a year.
Older trees and diseased trees fall.
We live in a fallen world, but adding fear to it isn't conducive to living a good life. There is an extent of precaution which goes beyond reasonable, and denigrating others for not going that far (which is the purpose of this thread) is just disgusting.