thats a good question and i also think it was from a stand point the the mind/body/spirit complex. i could only guess that it was because Ra was focused on getting as many entities qualified for harvest so they don't need to repeat 3d.
also im sure Ra said that STO was as equally difficult as STS if someone wants to correct me on that
also im sure Ra said that STO was as equally difficult as STS if someone wants to correct me on that