Adobe previously dropped the ball with MSP's.
Because in order to integrate an MSP, you have to make an Administrative install of the MSI, then apply the MSP, and then you are not able to customize your installation using the tuner anymore.

Currently, you can do that because the Tuner does not need the ITW file anymore. Anyway long personal story very very short, I always wait until the MSI versions are available, or use Foxit instead (another post I keep up-to-date).