I agree with you completely, John. I have taken a bunch of technical level instruction from a variety of instructors. The NAUI tech instructor with whom I worked for a while, spent a lot of time preparing us to perform drills, and breaking things up into smaller pieces so that we were set up for success. Getting things right built confidence as well, which helped all of us do better.
In contrast, my Cave 2 instructor gave us no tips on bottle handling and did no preparatory work or drills -- he just gave us bottles and told us to wear and use them. If I hadn't had the previous training, I would have done even worse than I did.
I'd love to see technical training have more of a stepped pedagogical approach, but keep the high standards for passing -- it's the lowering of standards, and not the adoption of a different educational approach, that worries me about PADI and tech.