CFI
You are quite right in insisting that spin recognition shouldbe properly taught but I m not sure I agree with your progression to the stall/spin. A significant nose high attitude is not necessarilly required to stall ( eg a C150 at gross will stall in an almost level flight attitude with 40 deg flaps ) , not all aircraft have stall warning systems and the ones that do don't always work ( eg the old Piper elec system ). The progression can go pretty fast in the wrong circumstances. ( eg heavy load, high density altitude, unintentional uncoordination due to illusion created by drift etc ).
Also older types are generally more unforgiving of low speed mishandling than than C150/172/PA28's. I still think spin entry and recovery should be taught and I will continue to do so eventhough I don't have to. But as always it is proceeded by a complete examination of slow flight including the game of " try to make the ASI go to zero without stalling" a great exercise in high power low airspeed handling and aerodynamic stall recognition.