Also a common misconception that hardcore punk bands only play power chords. A lot of bands are playing barre chords and hitting all the strings (imagine!). I learned most of the songs in the examples that way--whether the original guitarists did or did not, I don't know.

Full disclosure, I am a self-taught, punk musician with minimal knowledge of music theory. But most hardcore punk songs are just pop songs sped up, so I don't see how one can have a chord progression and the other can't.