To an extent I agree. The advanced techniques in martial arts are all grounded in the most basic ones.
A punch to the throat can kill, it crushes the trachea (which resembles a hoover tube), which splits the sides, causing bleeding into the windpipe, which is inhaled in the lungs. This can also happen if a strangulation technique with excessive force. The key to it is follow through. Most punches hit, and are then pulled back, which prevents them being caught. In this case, the trachea flexes back to its original shape (although it is a very uncomfortable experience).
It needs a follow through to crush it, and split the sides. All in all I would say it is a potentially deadly technique (as is a knee to the groin, btw). Deadly techniques are more about where than how you strike, a point in the neck along the carotid artery houses a nerve centre, which monitors blood pressure in the body, to warn the brain to control this by expansion or contraction of the blood vessels etc. If pressed in the right point, your body tells your brain that your blood pressure is MASSIVELY high (about five to ten times higher than fatal levels, depending on how hard it is pressed), and so the blood vessels expand, and the heart stops pumping. This causes unconsciousness within 6 seconds, and brain death within a minute or two.
Almosts all of the pressure point techniques/deadly/maiming techniques are based on simple science and physics, creating conditions where what was once strong becomes weak. (The neck crank as I was taught it is deadly, if you twist hard enough(it breaks the neck, and rips apart the supporting tissues), do you consider this to be outdated or nearly impossible to apply?
If you can jab someone in the face, you can strike them in the neck(which is actually moving slower), and if you catch them right, it is a debilitating/deadly technique. If you can apply a choke, you can do a neck pressure point. Thos who excel at advanced techniques are those who know all the basics, and practice a variety of techniques.
(Unfortunately, in most kinds of competition, it pays to specialise, and make two or three good moves “yours”, these become excellent tools, but at what cost? At the cost of flexibility, if you practice deadly techniques frequently(light contact, or padded areas with targets on a moving person, or simply holding back on power), I believe you can pull them off easily.
Morality in this issue is a different thread altogether.
Shenden