As I recall from the…
As I recall from the comments in the Reddit post, the OP did not drive a Wilderness edition Crosstrek. Reading elsewhere, I think I saw the NPS listed a minimum of 9" of clearance was part of their requirements. The Wilderness would have passed the clearance requirement, but the non-Wilderness trims fail that.
That said, without something equivalent to 4-low, our bone stock favorite CVT equipped AWD can't go as many places, even in Wilderness trim.