There seem to exist plenty of people who honestly enjoy the direct sun and find 85 degree heat pleasant.
Csa (koppen) is apparently held by many to be the ideal human climate (yet cities in that climate regularly clip 105)
I always wonder if it might come down to ancestry. Perhaps northern and southern family trees subtly adapted to their climate, diverging on their ideal climate in the process.
I was struck how the author kept describing +100° as a "warm city". Is that part of that old Texas oversizing trope? "We call drop dead on the sidewalk heat 'warm'".