I have read or heard that when the lights were moving, the whole structure was swaying back and forth length wise. This caused the side walls to collapse. I figure the early back and forth movement caused some of the fabric at the seam ends of the complex to rip and that was the reason for the first leaks reported.
Not sure, but I would bet that Jerry had some sort of insurance that did include natural disaster on a structure such as this. Otherwise Jerry has a very good lawsuit against the manufacturer (Summit structures). I really don't believe Jerry will end up being out a lot of expense on this disaster.
Now, as far as the people that are hurt, I will keep praying for their complete and fast recovery. God watch over them and their families. These people will sure have all the support they need from the Cowboy family and fans.