Joseph and avik: to be of the caliber of pinchas one would have to be a normal (healthy emotionally) person who usually abhors violence and in this one case his tremendous yiras shomayim would not allow him to countenance an outrageous chillul Hashem, so he went against his normally peaceful nature to defend Hashem’s honour. I don’t think anyone would classify shlissel as such as he had been in jail just before, aside from questions on his mental health.
However an act of pinchas denotes an act that would normally be abhorrent but in this specific case is justified to the the extreme circumstances : in this case having an unashamedly proud immoral parade in the heart of the holy city.