I think part of the problem is that in many cases the people authorizing the training (administrators) feel like they should specify what the training must be/include. Often, they aren't actually qualified to do this, so the specifications they create actually hamper the training. It might include restrictions on training methods, specific techniques/approaches that can't be taught (they had an almost-injury once, so "X" can't be taught), and requirements that specific approaches be taught. The latter isn't necessarily a hindrance, unless you bring in a trainer who's not versed in that specific method. So, if it required that a BJJ-style ground arm bar is taught, that wouldn't be an issue if the trainer knows that technique well enough to cover when to use it, how to use it, and can teach it efficiently. But if I was the trainer, that'd be a problem, because my experience with that technique is rather thin (more about defending against it).