That was one of the main points of the TOS Writer’s Guide: “Tell your story about people, not about science and gadgetry. Joe Friday doesn’t stop to explain the mechanics of his .38 before he uses it; Kildare never did a monologue about the theory of anaesthetics; Matt Dillon never identifies and discusses the breed of his horse before he rides off on it.”
This is one reason why for fans of TOS the later series suck in comparison.