And it's not reasonable to fear the unknown on principle. Being "conservative" by avoiding an advance doesn't make sense in isolation. It might cause a problem. It also might solve one. We don't know that. We do know technology is useful.
But "gung ho" doesn't sound right. Sometimes we have a substantive idea about a way an upcoming technology could be dangerous. In that case we should respect and consider that foresight, not just charge forward anyway.
BTW David Deutsch's TED talk touches on this.
It's a bit like doing rewrites of major production systems. Not a good idea. But of course it's much worse because human culture is more complex than a computer program.
But also like major production systems, we definitely can improve them. Now we just need unit tests for cultures to make refactoring easier.
PS Have you read any Edmund Burke? Got an opinion of him?