But maybe the 2 seat Night / Adverse Weather version proposed in the late 80s would have had more utility - admitedly it wouldn't have altered the transit speed problem!
It's a fairly academic question as the thing was never ordered by the USAF, and for good reason. In reality the YA-10B/NAW variant was poorly named as, beyond a targeting pod, it's sensors remained unchanged. The pod and second set of eyes would have helped in night ops, but would have changed diddly squat in poor weather.
Regards,
MM