This focus on education and inquiry led the Dalai Lama to explore the convergence of Western science and Buddhism in books like The Universe in a Single Atom, and to openly declare that, what science proves false, Buddhism would reject from its scriptures.
Having the leader of a religion being open to reject pieces of scripture, even possible fundamental ones, communicates a culture of open-mindedness.
But that doesn't mean it isn't poop-your-pants scary for the members of the religion.
To have something that was believed to be true, but is proven false, can have a huge impact on a religion member's self-identity. Just because leaders embrace change, doesn't mean that it will trickle down to everybody else. That is, unless there is a culture in place that is accepting to change.