Poking at the concept of Kegan developmental levels

Earlier this year David Chapman had a particularly concrete post demonstrating the importance of Kegan's developmental levels, which makes for a good test of understanding, and which shows the relevance to important things in life. Like, (not) getting seduced by a witch and turning your whole life upside down when unable to make sense of it. [1] You know, stuff that can happen to anyone. And that got me thinking... I can see where he's going with that example and yeah that tracks the theory as I understand it. But there are some things I don't feel like the model covers well — or at least, my relatively uninformed understanding of the model doesn't cover well. First, I'm gonna try to reconstruct what I can from my own way of thinking about things. The following is not Kegan's depiction, it's as close as I can get reconstructing it from what makes sense to me: At stage one you just act on impulses and that's it. But impulses often conflict with each other. You can eat when you're hungry and pull away from things that are pokey when hurty, but if you have to grab pokey animal in order to eat then you're being torn in two conflicting directions with no perspective from which to mediat