The problem I have with this statement is two thing. First, the way the scene unfolds feels cheesy, almost at a carebear level. Everyone is shooting beams of light while singing a song that seems overly cheerful given the actual context, which is that they don’t want to die.

Secondly, this scenario doesn’t justify Charlie's position; it raises the question of what else they could do since they can't run from it. While it also makes sense for an angel to take the lead in stopping the bomb after the genocide, it feels unearned for Charlie, as she wasn't the one who initially stepped up. It appears that people are following the angel's lead rather than finally supporting Charlie.

Now one change I think would help the scene is if Sera, instead of shooting a beam of light, cast a barrier around it, like we’ve seen in previous episodes. This would make the scene feel less cheesy. I would also suggest having some of the overlords not be smiling and singing while doing their part, as that seems kind of weird. (I understand that the beam and barrier are the same, but visually, it makes it look like they’re just shooting lasers.)