Your assessment is correct - that said, your pheromone level for combat purposes is capped, and you can get more than enough to hit that cap from other TFs (namely: Alpha Scent from Lupinol, Jungle Queen Scent from the Amazona variants, and Musky Pheromones from Laquine Ears or Lion-O's), so Faux-Cow's Innocent Allure would be the optimiser's choice.
Well, Cum-Cows also get Dumb4Cum, which gives a boost to max Intelligence, which Tech Specialists always appreciate - but it was nerfed some time ago, so it's probably not too impactful. I still think Innocent Allure is better to have.