I'm not sure that the P2 run circles around the MB when it comes to modulation. For example the MB has 256 modulation paths while the P2 'only' has 41.
The good thing about the MB is you can use a little bit of each source for each destination, this is not really possible on the P2 as you run out of slots having only 16.
The good thing about the P2 is the seq lanes and you get to choose 16 of the sources, also 16 user defined destinations while currently the MB only has 4. We are hoping they will increase this to 16 though.
So swings and roundabouts really