Update.

I've got my old green monster, which has been washed-and-dryed down to a mere shadow of its former fuzzy self. I've done the scientific "thumb test" comparing it with the wool in my leatherneck Matt Newsome and it is in the ballpark. I've got a second blanket (to work on first) that's in the wash even as we speak (or even as I type, at least). It is "de-fuzzing" nicely, a few more washes and I'll give it a try.