When I lived in Scottsdale once in a while it would hit 117 degrees. My garage was HOT, I mean Sonoran Desert Arizona summer hot and none of my tires "popped". Did they expand a bit? Maybe a little. My concern was that kind of heat long-term can't be good for tires so I changed tires after a couple of years even if they hadn't worn out.

Overkill? Maybe, but it just wasn't worth saving money versus a blown tire at speed, miles from home, on a 117 degree long ride.