Same argument goes for skid recovery to be part of learning to drive. Everybody would agree it is a good idea, but how many do it when they are totally focussed on their licence?
Licences don't make good pilots/drivers - experience does. I'm sure there is a very good reason the University Air Squadron system used to teach spinning at an early point in the syllabus. Fantastic fun and bloody useful, especially when young guys go solo GH in a (fully?) aerobatic a/c like the (mighty?) Bulldog - just too tempting. I'm all for it.
Oh, and if the 'dog loses 350 feet per spin, that's 2050ft to do 3 spins and recover within another 1000ft (just thought I'd correct some earlier maths).