Top hurricane scientist Chris Landsea has the following to say over at Prometheus:

One implication to me is that this further provides evidence that the busy period we’ve seen in the Atlantic hurricanes since 1995 is due to natural cycles, rather than manmade causes. We’ve seen a big reduction in wind shear in the last thirteen hurricane seasons, which is OPPOSITE to the signal that Vecchi and Soden have linked to manmade global warming changes. Another implication is that this paper reconfirms earlier work that suggests that global warming will cause very small changes to Atlantic hurricanes, even several decades from now.

Of course, it’s all based on global climate models, which, as noted below, are accumulations of guesses and fudges factors as well as data, so it may all be wildly wrong.