Also, here’s another point:
Chachmah is loosely translated as the ability to absorb knowledge.
Binah is usually lomed davar mitoch davar; the ability to reason and extrapolate knowledge.
Da’as is the ability to choose between right and wrong (think Eitz Hada’as. Also see Rambam Hilchos Teshuvah)
If the purpose of Gemara was the intellectual side of it, why does the Gemara use the lashon “Nashim da’atan kalos” when providing a reason that women shouldn’t learn Gemara? Wouldn’t you expect binah to be the neccessary brain function? Actually, women were blessed with a binah yeserah, which should make them better than men at learning Gemara?
I believe the answer hinges on what I said before. Learning does not affect a person because of the intellect. Obviously, it takes intellectual skills to learn Gemara. Maybe women can do that too; I don’t know. But learning Gemara is connecting with the da’as of Hashem, which means that a person’s da’as becomes more in line with His Da’as over time. Therefore, for example, his instinctive right/wrong decision-making abilities will be trained to be on the same wavelength as Hashem.