Very few people subscribe to all of the beliefs of a particular ideological and philosophical framework. But the tenets of an ideology are there, even if a particular adherent is unaware of them.
An ideology manifests itself in its effects on the world. In postmodernism and feminism, we see that in the completely dogmatic and anti-science reaction to the memo. Here was a memo that was produced in good faith, stayed fully within the realm of established science in its assertions, and within the realm of the reasonable in its opinion, and yet we have absolute lies being trotted out by its critics about its content, and an ideologically motivated firing of its author.
This is not an accident. It's a result of an anti-science dogma that frames the world as a power struggle between identity group, and where facts are only acceptable when they aid in the fulfilment of the postmodernist/feminist agenda: which is to flatten the social dominance hierarchy that, according to the postmodernist/feminist framework, is formed by various identity groups. This is inspired by Marxism (as the historical record shows), whether or not you personally identify as a Marxist yourself.