I've been reading a lot of things about Tantra, and they say Consort Practice is required at least once to attain enlightenment outside of the Bardo.
So, how did Shakyamuni attain enlightenment? He didn't have a consort under the Bodhi Tree with him.
“After I have said that I want all beings to become buddhas, I get unhappy when harmdoers get even minimal prosperity or honor. This is extremely contradictory.’ You must eliminate your jealousy regarding any sort of attainment by other persons and delight in it from the depths of your heart. Otherwise your Bodhicitta and the achievement of the welfare and happiness of beings are nothing but words.”
-Lam Rim Chen Mo