It appears that my LASA paper was actually written over 10 years ago by the graduate student Joshua Lund. (A meaning of this would be that I am not cutting edge and am well positioned in these peripheral trenches, translating smart work for the masses. This is not a bad realization; I am not being negative here.)
In any case I must re-study Lund — from Cultural Critique 47 (2001): 54-90, on “barbarian” theorizing. Riffing, for now: it would seem that exceptionalism is a criollo discourse; Lund suggests that the decoloniality Mignolo now proposes is another too-broad category and is also imbricated with Eurocentric binaries.
I must return to all of this, and figure it out.