Until they include all the things QBs do - run occasionally (or a lot), block, tackle when necessary, draw players offside, do fakes, handoff w/o telegraphing it to defense getting RB hammered, etc it will be a system designed to favor certain QBs. Marino was so praised by press despite not being able to do so many things needed to be a complete QB; he telegraphed moves so much that RBs took a lot of unnecessary punishment.