to understand "Stall" vs. "Deep Stall
Trust me, I understand.
The need for a stick pusher is because the aeroplane has failed to meet the stalling requirements by aerodynamic means. This could be due to several reasons.
1. The natural stall of the aeroplane is not acceptable.
2. The manufacturers are unwilling to test the aeroplane past Max CL.
3. The manufacturers have decided that the aircraft structure would not be strong enough to handle either the buffet and or the big nose down moment.
Number 1 implies that an aircraft that has benign handling characteristics in the stall regime does not require a stick pusher. It makes no mention of T-Tails, swept wings or jet engines.