Does this mean testing software before release at MS is second to none and relies on principle 'if users dont complain, we made it right'? UPD: I was just abou

Does this mean testing software before release at MS is second to none and relies on principle 'if users dont complain, we made it right'? UPD: I was just about to persuade client to move to Outlook 2016 from 2011. Glad I did not.