The potential to greatly increase defensive and deflection shooting abilities is definitely there.
I agree it could help in a multi con engagement. Just widening the FOV alone helps that, but how does it help in a 1v1? I could count on one hand the times I've actually lost someone in a duel, and off the top of my head all of those were because my view hat/TrackIR messed up.
As for shooting, like I said above, one F3 miracle shot shouldn't sink you in a duel if you're a better toon pilot than the other guy. But I suppose if F3 is really that big of a boogeyman, you could always stipulate the other pilot film his views. Fraps, ShadowPlay, and Afterburner are free and a pretty quick download.