AE911Truth is convinced it's nanothermite because of "steel framed buildings don't collapse in fires" meme. Which of course they do if the fire is intense enough. Which means that AE911Truth is convinced Plasco was steel-framed - and say so quite explicitly. So are all other references.
I think Emphatic got confused with the Grenfell Tower fire - which was concrete framed, and didn't collapse, despite the fire lasting rather longer than Plasco or WTC (before collapse).
[The middle eastern "tower torches" are even less comparable. Each of these fires were exclusively on the exterior of the concrete shell, there were no (or no significant) interior breaches. They were never in danger of collapse. The events show that they probably didn't even need to evacuate them.]
The code violations that Plasco had were because of the flammable load violations, poor access, and bad storage - a fire initiation
and evacuation issue. This is largely irrelevant to the overall survival of the building once the structure is on fire. As for WTC, building codes certainly didn't require resistance against fire initiation events of the magnitude of a 767 at 500 or so mph.
In other words, what Plasco had with fire reg violations, WTC had in whopping big airplanes crashing into them, leading to overwhelming fires.
In other words, with perfect code and perfect compliance, _neither_ WTC and Plasco would have been likely to collapse. Plasco wouldn't have caught fire in the first place, and WTC would have automatically suppressed it. So, they're approximately comparable vis-a-vis structure survival.
I do not believe that you could get a concrete framed building to come down without obscene amounts of thermite. The thermite reaction is so hot that the surface of the concrete would ablate like heat tiles on the shuttle (technical term: "spall" - the cured concrete's hydration will decompose then boil off), drawing off a lot of heat in the process. So, unless the fire goes on for a very long time and remained very very hot, it would be unlikely to fail.