Disagree. Counterexample: looking down the barrel of a gun "I wonder what this trigger thing does..."
That quote is far too easy to find counterexamples for, because ignorance does indeed harm. There's a reason we have Darwin awards.
Liu Cixin was talking about the survival of the humankind in the galactic context, but it possibly could be limited to a single localized culture on earth.
From this perspective the example you gave does only good for the survival of the whole.