I don't think it's a conscious trick. They're being as candid as they know how to be. They don't know how CTE works; they just know that it works.
And they also don't know (or care) that there's a difference. For them "it works" covers all the bases and there's literally nothing else to talk about. Asking them how they "do" CTE is like asking a fish how it swims. "Are you trying to say I don't know how to swim? I can outswim you!"
Stan's DVD won't put an end to any of this because it won't bridge this communication gap - that's not (and shouldn't be) it's purpose. It's a foregone conclusion that the DVD won't spell out how CTE works, because that's not the CTE "product" that Stan's customers want. What they want is how to do it, and they, like the fish, don't know or care that there may be other aspects of it that interest other people. They just want to swim. And more power to 'em.
Those of us with an academic interest in how CTE helps people aim may never be able to have a real conversation about that aspect of it with an actual CTE user because they simply don't speak that language - and maybe they shouldn't want to. If they did they might not be CTE users, and as far as they're concerned that's probably a good bargain. Maybe it would be for any pool player.
pj
chgo