BPF, to be honest even a sustained erect spin is difficult to achieve in these aircraft, and I would certainly agree the emphasis should be on reducing AoA to get the aircraft flying, where I would disagree is your statement
Any discussion of inverted spins have no relevance to the topic of stall/spin in ab initio training
, this certainly should not be discussed with all students as it will confuse, but anyone that has the interest and capability of understanding it should not be blocked from something that will expand their knowledge and understanding of stall/spin.