Throughout history martial arts instructors were developed in-house using the apprentice model of education. Even most military systems promoted instructors from within their own ranks. This allowed for instructors to not only learn techniques but to also absorb the finer points of training and pedagogy that only close contact/long term training provided. If you were training with a martial arts instructor most likely they had years of training under their belts. There were always shortcut training certifications sold in the back of magazines but the common understanding was that this was the realm of frauds.
Until 1981 KM also used this model yet it existed in only Israel. In 1981 the first international instructors course was held to train the first American instructors to spread the system here. This was considered "extenuating circumstances" as there were no instructors here. The instructor course was long and intense to mimic long term training. Six weeks,Six days a week,Eight hours a day. But that was it. Once it was here it was expected to grow here from the seeds planted. The courses that followed were for the students of those who graduated. It wasnt marketed to new territories.
Thats how it remained until the late 1990s. Eyal and Darren both had the idea to spread KM(Darren across the US and Eyal the rest of the world). So they started the instructor courses and affiliate programs that we know to be the standard today.
First of all it is not my place to judge the actions of my elders in the system. The path they chose got KM in the hands of many people who otherwise would not have had it. It may have saved lives. That makes whatever they did worth it. I also think the idea was that the initial batch of instructors would grow into their positions...many did...many did not.
What it also did was ti instill this template of instructor certification training for instructors in the KM world. Many frauds take advantage of this template for selling their own certifications. Many school around the country are run by people with these certifications.
Long story short...I think changing the culture of hard work and long term training via an apprentice model for developing instructors is healthier as it breeds a students mentality before an instructor mentally. People who jump to instructor mentally right away or too early tend to do this out of laziness or ego. This damages the rep of the system and short changes students looking for qualified instructors.