What is moralistic fallacy in philosophy?

his refers to the fallacy of assuming that only what is morally good can be a part of nature. In other words, whatever is considered to be morally wrong is assumed to be unnatural by people committing the moralistic fallacy. For instance, it may be assumed that since violence is morally wrong, it is not a part of human nature. The moralistic fallacy is often considered to be the opposite of the naturalistic fallacy where people assume that whatever is prevalent in the natural world is also morally good by default. It is said to affect the acceptability of politically incorrect scientific research.

Source: The Hindu, 28/11/2018