You see the pic. You can determine the temperature from the color.
Do the research, and you can ascertain for yourself that temperature. Any competent blacksmith can inform you.
I have run hydraulic heavy equipment that leaked like a sieve. You're grabbing at straws to confuse the obvious fact that excavator picked up red hot steel.
Are you serious or just willfully ignorant?
Not everything that glows is hot. And regardless, a few pieces of glowing metal does not turn the towers into dust.