True enough. Countless scientific experiments where 110-story buildings were collapsed failed to reproduce the molten steel /sarcasm.
I hate to tell you this (actually, I don't), but we've never had 110-story buildings collapse before, so we had no prior experiences about the physical state of the debris afterwards. A tremendous amount of energy was released when the buildings did collapse - and the typical end-state of kinetic energy is ... heat.
There may be too much science in that statement for Iconoclast2, the self-proclaimed physicist.