Seems to me a viable hypothesis.  Even if so, so what?  There have been severe weather events forever.  I was not alive for the Columbus day storm, but it's still talked about in the NorthWest to this day.  Even if there is a noticeable increase in severe weather events, the logical way to deal with it is to deal with them as they happen with snow shovels, chainsaws, etc as we always have.  I personally believe that severe weather has a beneficial psychological effect.  I look forward to big rains and wind and stuff because it is exciting and is incentive to actually do things, but I live in a rural area and get to (and have to) do things to deal with problems.  In the city where the most significant activity that most people take is to pick up the phone and call 911 or hire an overpriced contractor to cut a broken limb off a tree it probably is a different story.

Anyway, there is almost no doubt in my mind that this theory/hypothesis by this group is, like most of this shit, an excuse for the eco-industrial complex to further their various goals...most of which involve picking the pockets of us plebs.