It's really a statement about whether people have learned to think scientifically. It's okay to have uncertainty about a hypothesis that has so far held up to experimental tests, but you should probably abandon hypotheses that have been rejected experimentally.

It's like people would rather trust what they perceive an authority is telling them (even if there is a possibility that they misunderstood) than trust to avoid common sense (how could gravity drop off so quickly by distance and there still be a moon farther out?).