“Optimism is for assholes,” Miller said with a laugh. - James S. A. Corey

Long story, but the point is that if you hear hoofbeats in the distance, your first guess is that they're horses, not zebras. And you're hearing hoofbeats and jumping straight to unicorns.
So what are you saying?
I'm saying let's go see if we can find some horses or zebras before we start a unicorn hunt.

There was life out there. They had proof of it now. And the proof came in the shape of a weapon, so what did that tell him?

It was less fun being the chosen one and prophet when the gods were violent and capricious and their spokesman was insane and powerless.