This seems like an egregious oversight to me, no one thought about controlling the humidity levels in this carefully climate controlled server farm beforehand?

This seems like an egregious oversight to me, no one thought about controlling the humidity levels in this carefully climate controlled server farm beforehand? They used evaporation cooling to lower energy costs which ideally would saturate the air up to near 100% humidity in order to work best, how would you not know taking that air directly would result in water and humidity problems? They likely had multiple engineers working on climate control by itself, someone should have foreseen it.