The above quote on tropical cyclones taken from AR5 was on projections. However, there is no divergence on regional or global analysis on tropical cyclones:

There is low confidence in long-term (centennial) changes in tropical cyclone activity, after accounting for past changes in observing capabilities.

Current datasets indicate no significant
observed trends in global tropical cyclone frequency over the past century and it remains uncertain whether any reported long-term increases in tropical cyclone frequency are robust, after accounting for past changes in observing capabilities (Knutson et al., 2010).