i haven't seen this directly, or maybe i just don't think the explanation makes sense.
however, i do notice interactions. i think, at a cognitive, jungian level, the tendency to fundamentalize one's own privileged processes gets worse under stress. i feel more crunched by my deficiencies, and i can either run from those or step up to the wild flailing uncertainty i sometimes feel with respect to them. clearly the latter is a better approach for taking a big step.
emotionally, at an enneagram level, i think the reaction patterns clearly show themselves. just looking for supports to deal with the stress and try to prevent collapse/catastrophe. when i am not skilled at drawing those types of resources, i have little flexibility, and i get stuck trying shitty paths that don't have much of a feasible opportunity to be ecologically healthy. it's really easy to get caught in debt-spending, rather than gathering resourcefulness and developing a steady plan to do whatever work is needed to turn the tides, being as patient as necessary. however, when fundamentalizing, that can in turn put more pressure on further demands for repressing, and that can lead to little volcanic releases. so my e8 shadow, the hardest thing for me to integrate, really exaggerates my jabbiness, passive aggression, blaming tendencies, desire to knock down a peg or two, power lust, etc. just like my e1 shadow baits me into criticizing the fuck out of everything, getting caught in standards and unreasonable expectations, getting caustic and self-righteous, and playing this moral authority card that objectifies the truth rather than owning my needs, so that i can justify whatever lazy, impulsive, unaccountable approach i want, giving myself this fatalistic story so that i can focus on meeting my own unowned, unrecognized, unclaimed needs without regard for how best to do that or what responsibilities i truly can meet as i try to do so. this happens bc i've allowed my ideas of what is good to become more important that serving what is actually alive in me, because i was rejecting my actual self in favor of shoulds, in favor of expectations.
for e5 having e8 shadow, and e4 having e1 shadow, for both committing to action and following through with actual choices, lies the deepest integration. i appreciate this, and i appreciate how e7 and e2, their positivity breeding momentum and appreciation, their commitment to worldliness and opportunity, make these possible from the bottom of the well that i have learned to climb out of as a 5 and a 4. and instead of fleeing into simply what feels better NOW and what is distracting enough to avoid the difficult thing, learning the lessons of those to leverage the bigger push needed to do so.