1) Morally - "purely (dramatically) palliative" as if that were a negative?! Really? (Sure, it would be great if it were palliative and close to addressing root cause of the disease - but palliative is a good thing. Especially as much as Jakafi does.)
If you take care of the "cells" the spleen will heal!
2) Factually - Jakafi does provide an impressive OS benefit. It may not be in the label, but at least one of the trials shows a substantial OS benefit.