Was he wrong, fire intensity is dependent upon the amount of fuel load or is the intensity of fire reliant on the ambient temperature as you suggest?
I have always encouraged my kids to Think for Themselves and have laboured the point that they should do a bit of research if they’re not sure of anybody’s claims ( including mine).
All 3 of them have a basic understanding of the truism Just because you read something or see it on the telly, doesn’t make it a fact and they don’t always agree with me.