Meaningless yes, but at lest correct. It's important when you debate to not blatantly lie. It shows you have a deluded agenda or you are an ignorant idiot.

One thing that I did not look into is radiative heat. Having one surface burn at 500C is not the same as having a volume burn at 500C. The heat is transferred by several processes, one of which is IR radiation. Several floors are burning for about an hour and any trapped heat will cause either violent air ventilation due to convection of heated air, or hot-spots that have temperatures above individual fires.