Although Vaan hasn't explicitly stated what they should do, his words resonated with everyone's thoughts.
Ever since they fell into the Umbral Edge, escape and survival had been the only drive and purpose for their living. They had never given much thought to anything else, nor did they have the luxury.
However, now that they have uncovered the terrible secret hidden in the Dead Lands, how could they still selfishly think about escape and survival?
The problem was much bigger than themselves, concerning the wellbeing on the entire Chaos.
If the final result of constant fleeing was to be exhausted and hunted, why not take a stand to resist? To fight back?
At the very least, their death would have some meaning.
Even if they were weak, unable to contribute much, and wouldn't even be remembered for their sacrifice, they felt that they could still gladly dive into the abyss for the greater good.
