Well unlike some here who went to elder schools in the 70's-80's the more very recent week long schools focus on the spirituality of the elders themselves (their words not mine).
I am sure back in the day they focused more on the actual roles of elders being that the arrangement as we know it today just started. Add to that the "Apostate" witch hunts of the 80's. By the time I started to serve in the 1990's it must have been toned down. The regular 2 1/2 day Km schools still focus on the Flock book and how to handle wrong doing, etc. but this passed 1 week long one was different. I mean it was still a waste of time, just not as bad at least to me.