I'm just gonna put this out there, could the reason they would not implement Google Authenticator be simply because some suit didn't want people thinking Google

I'm just gonna put this out there, could the reason they would not implement Google Authenticator be simply because some suit didn't want people thinking Google+ was in charge of their authentication or something? I hope not, but of all the companies Twitter seems like it would be too 'brand sensitive' or some crap.