Cruentus
Grandmaster
Should this take over a TMA's training? No. Should it be a sub component. Personally (and I'm opinionated about this) if your school advertises teaching self defense and your not touching on this in class on a semi regular basis (a few times a year or so), then I think you're doing you students a disjustice. A little goes a long way with this and in my opinion is more important than teaching a prearranged self defense.
Well said!