Rob I am not sure who this new Guru from Hereford is but from your description, the techniques sounds like an ill conceived interpretation of a legitimate system.
We at GSGI teach a close- in combative system that has as it's basis a common fighting stance. This stance serves as the fighting platform for the hand and shoulder fired gun, the edged weapon and is in fact the base stance for our jiu-jitsu based grappling program. The key here is to eliminate any decision time by incorporating a common stance for the first phase(and most important) of entry into condition red or fight mode. The weapon, any off them, are as effective as the person using them which means stance or fighting platform must be an integral part of the training. The key elements of stance to be considered are: three dimensional stability, optimal use of peripheral vision, rapid weapon deployment for effective use and weapon retention during deployment.
Let's look at your test case for example. He teaches a highly bladed stance which is strong against an on rushing attacker but very unstable against the attack from any other direction especially from the blind side which is quite large as a result of the bladed position. In fact half of the frontal or danger area is not in view. This is why we prefer a modified Weaver stance, a cross between the Isosceles completely frontal and what has been called Weaver which is sometimes taught as completely bladed. Taking the best from both stances you have a knees slightly flexed position that is slightly bladed strong toe in line with heal or mid-foot of the weak foot. The fighter is not committed to one direction and is equally capable of rapid movement in all directions and is now in a position that allows for maximum peripheral view of the entire frontal area.
Your secondary test case uses a pistol presentation that incorporates an elbow block from the weak elbow while bringing the pistol to a high, under the chin weapons retention position. The elbow block is a good thing if conducted properly which I'll explain later. The weapon under or near the chin is not good as any physical encounter will introduce such issues as inter-limb inter-action and grabs to the neck area thus putting the weapon in a precarious if not lethal position to the shooter. And I wonder how many rounds one has fired in practicing marksmanship from the under neck position - not many if any?
The secondary presentation in close quarter battle is the most least understood and poorly taught element of weapon-craft training today. I don't know where the street statistics stand today but since Dr. Fackler and other prominent authorities within law enforcement academia have studied police shooting incidents in prominent cities throughout the US it is generally agreed that most shootings occur during poor light conditions, some 80% inside of 10 feet some 70% inside 7 feet and a hit ratio(from the good guys) under 20%. Shocking is it not? Well if one considers that previously taught Point Shooting, while admittedly effective within the highly trained and continuously training communities 22 SAS etc., simply does not work in law enforcement training, or military training for that matter, unless an unrealistic commitment to maintaining highly perishable skills is supporting. Jeff Cooper's modern technique must prevail in training today. The front sight discipline must be reemphasized if we are to get these hit ratios up to 70% or better. But let's face it there is no way in hell that a shooter will get a weapon out of a level two holster and present the weapon to a flash front site picture and shoot two well aimed shots inside of ten or seven feet - no way in hell is there enough time or space.
Our AFCQC system addresses this close in problem by teaching a presentation that is essentially the modern technique's presentation but we present the weak arm elbow braced with the hand locked against vest or shoulder and introduce one step from the holster that orients the weapon immediately on target, close above the holster with the palm of the shooting hand indexed on some bit of gear or rib. By stressing trigger finger discipline and repeatedly orientating the shooter to this position making sure of the weapon's alignment we than develop an interim firing position and practice firing at the target's lower abdominal area out to ten feet. We than teach the meshing of strong and weak palms at the strong shoulder and roll the weapon out to front site. With this initial presentation the elbow and body create a block from an un-rushing attempt to grab the pistol while enabling the officer or defender to use less lethal alternative force techniques during the evolving full presentation to front site.
I must reiterate this is not a system meant to preclude front sight discipline it merely allows one to get there in the close or surprise encounter. Do not attempt to teach this as a new student can cover the weak hand if the technique is not taught correctly.