This instance isn't saying all science is bad, only that a particular scientific belief was incorrect, harmful, and based heavily on cultural bias. It's always science that ultimately destroys that type of "science." Science is fundamentally a process of tearing down old beliefs and replacing them with better ones.

Good scientists won't hesitate to confirm that science can cause great harm. That doesn't mean science isn't the best method for finding truth about material reality, but like everything good, it is powerful and dangerous.