Probably better just to leave even more gap and expect the freaky actions of otheres to happen!
When I'm on two-wheels I treat all other road users as homicidal maniacs out to get me and I've found that's worked well so far!
If your going for a VFR though i'd have it.
Given the option I'd definitely pay extra for it now. Didn't have the option with my CBF1000 as the GT versions (the one with full-fairing and luggate) all have it as standard but if I'd went with the base model I'd have specified it anyway.