Question 1A.
In my experience, learning to dance, like most art, has two main components: technical understanding and intuitive understanding. The technical side is orderly and logical, and you can apply any number of systems in order to understand it. However, the intuitive side is chaotic and often illogical, and results in many different interpretations by different people. You can't go extreme on either side because that risks oversimplification and a lack of true understanding of the art, so in employing a mix of the two, you achieve successful execution and therefore effective complexity.
Question 1B.
For my personal work, relating to the problem of intent, I don't see why I would use generative methods to create art over other more meaningful and comfortable methods for me. When I look at generative art, I'm not always able to identify the intent behind using that method, and I don't exactly know why people would choose to make art that way, but I think this is just a side effect of me needing to study and understand [technological] art in general.