Like all instrumental rationality, it depends on how it aligns with your terminal goals, and how you feel about conscious action which affects others' unconscious reactions. I'd recommend Cialdini or Carnegie as required reading alongside PUA thinking, so you can understand what parts are general human reactions and what parts are specific to sexualized interactions with a certain type of woman.

I do think that it's likely a true belief that most humans act and react in fairly hardwired ways, and understanding those reactions is beneficial for a whole lot of terminal desires. I don't think that Heartiste (or others in the PUA clique) are focusing on the right things for long-term happiness and shared self-reflective growth with a partner.