“But Chazal said farkert; their lower intellectualism is why they shouldn’t be educated. “
No, Chazal said it is why they shouldn’t be educated in Torah. Meaning it is very possible that Chazal were saying that it is dangerous to take a woman who is completely uneducated and teach her just Torah. But if they are educated in all other regards then perhaps it would not be so dangerous for them to learn Torah.