OK, so I promised this a while ago, and I've let myself get distracted by a few other points in the interim, but I'll try to draw them in and show how they are related to the teaching of phonology in general.
In my posts 4 skills safe and 3 skills safe, I argued that the division of language teaching into the traditional 4 skills of reading, writing, speaking and listening was trivial, superficial and of very little pedagogic value. Instead, I suggested that we should look at individual skills of syntax, morphology and phonology, and that we could add orthography as an additional, more abstract skill (Lev Vygotsky described reading and writing as "second-order abstractions").
Phonology often gets very little attention in the classroom, as it is seen as a sub-skill of speaking, and speaking's "difficult". But phonology is fundamental to many languages.