He's very clear about metaphysics just being "mind-stuff" and irrelevant to genuine awakening. He doesn't talk about the stuff that might be considered "unscientific" (e.g., that would fall under the category of psi) because he realizes that it would distract people from awakening (some of them by being too interested in it, and others averse).
Okay, yeah. I also found this recent video of his on "materialism and other views" clarifying. Still curious about whether he views the "self" in all senses of the word illusory (epistemic vs ontological for example), but I'm guessing he considers all of that irrelevant and is only interested in pragmatic liberation.
I've listened to some of his YouTube videos, going through his book. Not sure if he makes metaphysical or unscientific claims anywhere, or if there's anything to be wary of.