Having now actually read it in the interim, I'll say that I found it fun, with a couple of big caveats:

First, the humor seems a little strained at times, particularly the beginning section as I recall.

Second: I have no idea how well someone not already well versed (and ideally experienced) in thru-hiker culture and lifestyle would relate to some of it.

It's not fundamentally a parody of Wild, though she does nicely skewer it on occasion.
Brian Lewis