I legitimately don't think this qualifies as NSFL. There's no effort to make it gross, no muscle or blood. It's just normal skin that falls away to bone in a few places.
With the subject smoking as the vegetation reclaims the scenery, it seems to be revealing a resignation and, perhaps, even a willing participation in our own destruction.
I adore musical episodes, assuming the cast has the chops to pull it off. I'm genuinely saddened by some of the salty takes in here about it.