I read it more as warm up and run and gun. Laying down really threw me off. Didn't see anything about diagnostics.Blaster did say in his first posts in here that he would be running diagnostics on each student to guage their level of proficiency and then work up from there. Some of the scenarios he laid out are not earth shattering spetznaz stuff... it's just giving direction for thinking through how students could address different positions and then giving them the opportunity to practice at their ability level with coaching along the way.
Back when I shot idpa somewhat frequently, these kinds of scenarios were commonplace and competitors of all skill levels ran them.... only without instruction to go with it. Stages where you start sitting down, facing towards the shot timer, kneeling, etc are frequently part of a day's shooting.
I don't see why diagnosing current ability level, working them up to build proficiency, and then applying their skills in a variety of situations while being coached is the end of the world. I think you're either underestimating blaster's ability to run a class or overestimating the risks present.
You have a very valid point about IDPA, but I would argue there is a difference. Most beginners at a competition have 3-4 coaches on every stage. Lot of eyeballs on them. No chance of getting complacent. Doing reps training on a range can be a different animal.