As far as the comments about having a 'perfect neutral bow' or other stances/strikes...yes, if you are in a fight, you don't have the time to make sure every movement is perfect. That is why you make them all perfect in practice and drills, so that when you get in the fight, they are done in the way they are supposed to be done without thought. then everything's "perfect" (or close to it) without having to waste time focusing on all the minute problems.
Unfortunately, I can't comment on the rest of the post, since I may have misunderstood BUT from the EPAK instructors I've met, they seem to know what they're talking about, answer my questions when I ask, and as far as I know actually studied with the people they claimed to (although to me it doesn't matter how pure your lineage is, as long as what you teach makes sense and is effective).