TOMORROW WILL COME

yes, it would've been great if we got more screen-time for those characters that seemed to do complete 180s (namely, sevika) and see their motivation, but overall, a scene like that might have ultimately cheapened the decision. like, does it really matter if there was a "why" beyond? would any motive balance out the suffering that zaun has gone through at the hands of piltover's citizens? no. of course not.

at no point do we forget that the people of zaun are horribly mistreated. it's written clearly in the first two acts: people being punished for daring to rebel, extra measures taken for protection because as per the rules of oppression "the act of one member of the party = all members of that party are evil." being thrown in prison for just having a protest, for fuck's sake.

both us as the audience and the people of piltover understand why the zaunites originally refuse to take part in the fight. what has piltover done to deserve their empathy? absolutely nothing. and what could have changed in the time between the zaunites hunkering down and them coming back to help? absolutely nothing.

but they help anyways!

at the end of the day, nothing is going to erase what the people of zaun have suffered. they had every right to turn their backs and do what they do best, what they've been forced to do time and time again: seek their own survival. and they'd be right to do it!