I agree with much of what the author states and the reasons why. Much of what makes MT, MMA, grappling, etc so good for actual fighting is that it's movements and techniques are straightforward and basically highly efficient, normal, methods of moving for us, unlike some crazy-assed, convoluted pattern of movement seen in many martial arts.
Emphasizing "fighting" over more technical aspects serves a purpose. Take for example the milling vid, the idea is to take a bunch of guys from all manner of backgrounds and teach them unlock aggression and no-quit attitude, but it's easy to see that one guy had a lot more going for him then the other. In that environment the objective is to jumpstart a captive group, it's not like a recruit just just grab his gym bag and walk out.
Many people don't have the ability to flip a switch and turn it on, others can. Starting lower on the scale we can build people up slowly until they become accustomed to pressure, contact and aggression. If we started out with a "milling" type structure most will quit in short order out of fear, confusion and just being unable to cope with the pressure. We'd also have a lot of injured people because those that can flip a switch may not have control of themselves and end up hurting others or even themselves in a rage.
By starting out on the lower end of the spectrum and working up, both (those who can flip the switch and those that can't) types of people can benefit and improve. Non-flippers learn to deal with pressure and develop their ability to access aggression, while flippers learn to temper their ability to turn-on and become much more precise in their application of force...rather than repeatedly mongo smashing willy-nilly with wild strikes

they are able to much more efficiently, and thus more powerfully, strike their opponent.
Morris wrote, "The sparring has to support the fighting and not just be playing about." This I find avery important. One thing I try to emphasize when I teach class is to using real tools in real ways when sparring. For example, in the open hand game I tell people to use REAL movements, techniques and targets. The OBJECTIVE is to warm up, develop movement, distancing and footwork.....realistically. That is not accomplished by making it a game of tag whereby you dodge your opponent like a ballet dancer and and strive to get your touch in anyway you possibly can.

When I look at two people "sparring" I can tell the emotional context in which they are acting. People who approach sparring as a "match " are much more upright, chin up, hands relaxed and they have a calmness about them. This is an excellent state in which to develop tools and attributes and more importantly.......have fun. When people are doing Cr8s "Shark Drill" they are much more tense, chin tucked, intense.......downright jumpy

This is also the state I try to get people into when having them do the "Waianae Boy Drill." I hate seeing the WBD done as a tippy-tap drill and frequently emphasize the emotional context of the "Butt Clench Range.
Drilling and sparring must have the objective of realistically dealing with a given problem while using progressive resistance to develop skills and abilities over time.....otherwise it'll develop skills that fold under pressure or people who have a false sense of ability.
i forget why the hell did I right all that??? too many kids and noise gong on for me to think straight

arrrrghhh!
ME HUNGRY, NEED FOOD!