Is it though? I've heard very often that lecturing in this fashion is the most inefficient way of transmitting information from a slide onto a notebook without being understood by anyone writing it. If you're processing what you're seeing and summarizing then maybe that works but I think what worked best for me was always asking questions about the material.

He says known method, not known good method.

In our case it created entire "industry" of rewriting lecture notes by hand (some lecturers required it)