As I recall the “Mythbusters” test, they used not only the conditions there, but LESSER conditions (pressure/simulated altitutde) and still got a massive explosion).
Do you remember what episode or at least what season Mythbusters did this?
The only thing I can find on their results page dealing with something similar was the rapid or “explosive” decompression show where they fired a bullet through the skin.
They only were able to recreate the explosive decompression by using explosives and even then the results were not like that typically shown in the movies.