Since its here I am going to use it as a point of comparison for something I have noticed in my training...
I think a fair goal of mainstream aikido is to disseminate a curriculum that creates a pre-disposition to understand and apply aiki. The actual expression of aiki is complex and not everyone will actually find that path. Some number of students pre-disposed to understand what is happening are exposed to aiki and pick up some quality of aiki and express it in their waza. Not everyone gets it and not everyone cares.
In the analogy above, the problem is surviving a fight in one year. The duration of preparation is one year. The consideration of study is between music (specifically piano) and athletics (specifically football). The question would be, "Which curriculum is going to leave you pre-disposed to understand fighting, given neither curriculum directly instructs fighting? The actual curriculum you should learn is answer is of course hockey.
Oh crap you are right, I chose the wrong sport.
Just for the sake of clarification, my very strained metaphor was meant to compare two styles of fighting which have different levels of complexity, or levels of difficulty in being able to master and put into practice the concepts. I'm not sure if something as difficult to learn and master as This Stuff would be popular with professional fighters. But so what - very few of us here are professional warriors, and those who are work on the modern battlefield.
I am not sure about your statement that modern Aikido intends to disseminate the ability to understand and use Aiki. You can say that, and I can say that, but we might be talking about different things.