Less smog means more sunlight reaches the ocean’s surface, more heating means more storms that dissipate heat. Interesting, anyway.
Surface temperatures in the South Atlantic basin, where most tropical Atlantic storms develop, typically max out at or about 30 degrees C every summer. It can’t really get any warmer than that in the open ocean because of increased evaporation.
They don’t say it but they probably didn’t dare. The increase in storms over the Atlantic and decrease over the Pacific implies thaqt China is the major polluter in the world today.