I don't mind risking if the gain is acceptable.
The gain here would be huge one game, and never again afterwards.
It's simply a deployment problem should the Storm/Scouts profit off of a raider first turn.
In addition it's still 2 kill points you are throwing around. At least for me, the risk outweight the gain.
I'd rather risk instant death weapons and go to town with tri-Multi-Melta Attack Bike squadron.
QFT!
It is simply to crappy to do any well in against all environments.