Admirable to try, but I would say If someone has themselves this convinced FPS's on the consoles are that bad, then really no changing their mind at the end of the day.
It's not that FPS games on consoles are bad, its the controls that get me. I understand that it is not a fast-paced game like standard FPS games, but joysticks in FPS games (turn speed based on angle of stick, the time it takes the stick to reset is how long it takes to stop turning) feel similar to keyboards in racing games (you are either turning, or not.....). I admit I do have limited experience playing FPS games with controllers, but the experiences I do have were bad enough that I am willing to assume all FPS games on consoles (or using controllers, rather) are just as bad.
I prefer to aim (in an FPS) at the speed that I move the mouse, not in X amount of time once I move and hold the joystick towards where I want to go. Even if it's not competitive or fast-paced, I feel it was a pretty poor decision for them to go PS3 only (not even console-only, but locked down to only 1 console). I understand it's a small company, but they cut off so much potential profit by locking it down to a single system. I really hope they at least port it to other systems.