So why do you guys think Finn didn’t know Poe Dameron survived? Wouldn’t there have been footprints in the sand that he ran away in?
A light breeze could get rid of footprints in the desert.
Wasn’t that robot with him? Couldn’t it have told Finn that he survived and ran away?
BB-8? BB-8 took off before Poe was even captured, ipso facto BB-8 assumed that Poe was dead after this:
EDIT: Zkin beat me to it.