People died in their own world > people get summoned to other world, do not remember that they're dead > people remember that they've died, no one is happy about that discovery! More or less. So the... retroactive death discovery had a limited impact, I guess? In that it convinced Cecil to protect the gods' world and ensure all those people have a nice 'afterlife'.

But that impact is nothing compared to their influence as 'living' characters, that's true. Guess he'll be spared the dead teenagers hanging around! Thank you for your quick answer.