Yes and no.
It was in reference to the first of the two videos. And it was hyperbolic. Styrofoam emits toxic vapors, it's polyurethane foam that's most hazardous:
Quote:
Fireproof Depot
Is Polyurethane Flammable: Can It Catch Fire or Combust? - Fireproof Depot
Exothermic? 
Mar 7, 2024Polyurethane is combustible and can sustain burning once ignited. Polyurethane is an organic material that can burn rapidly and produce dense smoke, gases, and intense heat during combustion. ... Polyurethane foam (FPF) is flammable and should be kept away from heat sources and
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Exothermic?
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.Impossible is just something we haven't done yet. -- Langley Outdoors Academy
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