Oohh, i see. i missed that in the interview, or misunderstood that it was just Cryptee related. The way i understood it, they were using it because it was optimal, in regards to other SSO options, like Apple’s and Facebook’s and Github’s. John mentioned in the interview why they chose Google, but i didn’t realize that it was chosen due to something that only worked well with Cryptee. But I’m glad I asked, now i know 
thanks for the info, @Jonah