I agree with your view. But can you tell what self defence tricks will be more useful to learn for women?
There are certain techniques that work better for women, although they could also be used by men, just as effectively. If a guy is short and stocky, he can probably benefit from the same techniques I use regularly, and for the same reasons - disadvantages in reach and leverage in certain situations.
That said, I mentioned earlier somewhere in this discussion, I like using "gross out" and "crazy" means for discouraging my assailant, if we are at the point of engagement. Snarling, biting, going for the eyes, ears, and nose. One of my instructors used to say, "Make him think you are Hannibal Lecter's favorite niece, you just escaped from a maximum security asylum for criminally insane, had a nurse for a morning snack, and this potential assailant is lunch." I like that approach. It works for me because it introduces an element of surprise and disconnect between perceived image and behavior. I am very short, round, and look like a Victorian doll with big googly eyes. So, when someone with my appearance makes a sound like a werewolf, it's a bit of a thought pattern interrupt. Instead of considering attacking me, they suddenly start wondering whether I've had a rabies shot and whether they should get one.
True story - this one time in class, in an attack line, I almost toppled a guy by screaming at him. Big guy - one of my favorite people ever, really good martial artist, but, on a very primitive, basic level, a very terrifying presence for someone like me. He's the kind of person who walks through the doorway and you can't see the doorway. Anyway, he came at me with an overhead strike, so he was going forward, with his weight on the balls of his feet. We talked about "psychological warfare" just before that, so I decided to try it and screeched at him. I tried to produce a sound I've read about in a book - it's made by a woman who is trying to distract a wild boar from attacking her friend. In the book, the sound is described as "the witch's scream". It ALMOST worked. THIS close. He teetered on his toes and almost fell face down. But not quite - I still had to get in and use another technique. It was fun though. And very educational.