I didn't suggest that people are good at making that effort. They arent. But the irony is that it's precisely in that difficulty that the act of verification lies. The fact that it's so difficult that it's not at all an efficient method for discernment suggests that it's either done on purpose or Google's UI is just not good for that purpose, or both.
It's more like "First one on the list? Well, that one's right -- unless it disagrees with my personal biases, then maybe I'll look for another one."