The whispering ribbon suggests that focusing solely on the impact of humidity as a determining factor of comfort seems too absolute.
My intuition tells me that the ability to manage humidity depends much more on local infrastructures and traveler expectations than on humidity itself.
One can be very uncomfortable in Montreal with 80% humidity if in a city without air conditioning, but very comfortable in Florida with the same humidity if staying in a air-conditioned hotel with a pool.
Comfort is conditional; an analysis should show how guides incorporate local adaptation methods to confirm their influence on perceived comfort, not just the raw climate.