We aren't talking about marrying anyone, but rationally and objectively determining what is the most likely outcome.

By not trying to figure out what's right, sure you're not a sheep, you're just a non thinking rock. Why anyone would think that's better, I don't know.

If you're just picking and choosing whatever you want to be true, that's also as equally thoughtless. If you aren't doing that, then you're still just following the sheepherder if you aren't doing the research yourself.