it is inferior bc we are and have been so busy with other things, so we do not incorporate/integrate it very well.
in other words, our intensified conscious attention (and adult thinking system) began being itself by making use of a different kind of information, and we are more used to cultivating this other type of information, so much of our learning and resourcefulness habitually comes from other pathways.
Se (and probably Ne, in a different way), gives a sense of presence. this helps us examine and explore more directly, staying attuned to the reality of the process around and through us, the one that ultimately is constructing our experience and that of others. staying with it, learning how to invite it into the conversation, check in, absorb it, gives us tools for truly centering ourselves not only emotionally but in terms of our awareness, in terms of the ongoing stories and ways of noticing that help us respond from our sense of the moment (and the intersecting threads that constitute it, that kind of bleed and pulse the energy of it).
it's opposite of Ni, which comes from this entranced, non-temporal place, where we blend together this sense of quasi absolute perspective that isn't really grounded by a sense of flow. it relies on meaningful abstractions and a sense of equivalence to explore ways of surveying the possibilities within, of remaking its own frameworks and communities of perspectives/ideas. it's always cross-contextualizing, finding ways to unify and separate, building this hierarchical context kabob that keeps eating itself, ultimately only orbiting other orbits. just looking for symmetry and scaling, linking perspectives rather than exploring and sequencing movements. we become projected into it rather than noticing how it becomes us.
Se is so helpful because it helps us explore ways of experiencing more directly, in turn helping support our ability to be ourselves all the way thru the moment. it wakes us up and allows us to respond to others with more vibrancy and full thereness. it also feels good and shakes us up with a darty, non-linguistic sense of fun.