No NEED!
There are "IN the CLEAR" CP channels popping up now and then, Nasa and what made my mind up to get the QPH-031 was GOL TV.
Who knows what will pop up tomorrow and its nice to be future proofed! With the CP side you can FORGET about rain fade being a 0.3dB LNBF : )
Another plus about the LNBF is the Linear side is a Standard with a L.O. of 10750, takes less time to blind scan than a Universal. And many receivers now default to this L.O. (10750)