Why foist all of this upon a fanbase that's gracefully aging right along with you and is thus a little more malleable than either of you were in your mid-twenties, a little more open-minded, a little more down for whatever? The answer, clearly, is "Why not?"
The ukulele doesn't allow for the widest range of expression, which makes it a challenging foil for Eddie Vedder, who never met a feeling he couldn't drive through a wall. But this uke-suffused album stands up because he adapts the instrument to his idiosyncratic needs.
Like a lot of Vedder's experiments, the spirit is easier to admire than the final product. The ukulele might be a great campfire instrument, but sometimes what works best at the campfire should stay there.