The cup was NOT served to the congregation for centuries, by the Church’s own history.
They did NOT serve communion to the congregation as Christ instructed it be done.
They were disobedient to the clear and direct command of Jesus Himself.
Since by your own admission you do not believe that the Real Presence of Christ is present in the Eucharist you really look a little foolish pursuing this argument. It smacks of baiting. If you really believe it is the clear and direct command of Jesus Himself you would be partaking of both species weekly.
Right! And I know it from my own history w/the catholic church.