Why worry too much about accuracy (or pronunciation in this case?) Theorists argue principally for the more achievable goal of intelligibility; learners (What do THEY know, anyway?) in almost every study "demand" assistance with accuracy of pronunciation and to be more "native speaker-like," especially if their job depends upon it. Obviously, there is an "information gap" here. Hear it straight from "Dr Gap," himself, in this typically engaging and revealing interview at KOTESOL.