Well, I think the confusion of almost all plot elements in this episode are really what highlights how good the action parts are. If the plot actually made any sense it'd hold up better (and it might later in retrospect, once it explains some things), but yeah, for now the action, and maybe also the main three characters, are the highlights, along with the theme, music, etc.
As for "no explanation for new viewers"... yeah, good point, people watching this REALLY should watch the first season first, without that some of the few bits of plot in the episode that did made sense probably wouldn't.