Cofty stated Einstein was an atheist, was that disingenuous of cofty?
No, just inaccurate. Disingenuous means revealing less about something than you actually know. You know (or should know by now) that "Einstein did not believe in a mono-theistic personal God" and was in fact agnostic and pantheistic.
but in future I will point out although he believed in God it was not a personal one
Even better - stop using the appeal to authority. It doesn't help.