This has been of course one of my own criticisms with various brands of shentong above and in other threads. I explained it as as aspect of the rational ego, the autobiographical self or formal operations in MHC-speak. That's where the Cartesean split occurs, so that when we unwind in meditation to the core self, that first reflective 'I,' we misinterpret it as some form of world-transcendent, metaphysical entity.
Hence the next step beyond the autobiographical self, the centaur, takes us into postmetaphysics, once again grounding these natural states with neuroscience, validating the states but refuting the transcendent interpretations. And as I've said above and elsewhere, we can get more complex in our 'operations,' but until we re-embody and anchor those in our core and proto-selves via meditation or some similar methodology it's all just more complex, yet less integrated, psycho-babble still caught in Cartesian dualism. That is, the postmodern, postformal operatives got the interpretation right* but lacked the proto- and core self integration. While the traditional meditators integrated the prior selves, yet were still stuck in formal interpretations. The real/false reason thread is a good place for review.
* Except for the researchers into stages like the MHC. As I argued in real/false reason, there is a big difference between those that manifest postformality and those that study it. The latter seem to me to be stuck in the dualism, even the model itself, and the thread provides ample evidence to that effect.