"Now the strange thing is that the Buddha did not have a desire to teach the process of liberation he discovered but he was induced to do so by the Brahma deity."

Another issue: Since the Buddha had to be induced to teach by the Brahma deity, his teachers Alara Kalama and Uddaka Ramaputta may need to have the deity's blessings before Lord Buddha will teach them.

Otherwise, I assume since the Buddha had realized their two systems successfully allowing for nonrenewed existence, his level of consciousness would allow him to reach their existential levels.