Yeah, for sure. I'll posit the same question I asked of another lemming:
Let's pretend like he didn't persevere, even after remembering, and save two planets in the process. Now where are all the other book moments that make him a proper coward? Or is one weak moment when faced with death all it takes for you? He's just irredeemably a coward because he couldn't force himself to elect to die with 4.5 hours notice?