Actually, they're supposed to provide mobility to soldiers. You might remember:
or
Basically, the concept behind individual aircraft was to provide the soldiers with a rapid movement capability vs. nuclear engagements. Also, the picture you're inquiring about, Reaverman, does come with avionics, built into one of the hand grips. So, let's quickly run down your list, shall we?
1. So? Speed is what counts here. Speed is Life for one of these soldiers.
2. Umm, not really. You still have limited armor while on foot, so the average soldier who pilots one of these things doesn't have any more and or any less armor. Besides, this is ment for the FCS system.
3. See above
4. So? How is that any different than turning a pair of 20mm anti-aircraft guns on a ground born squad? Even missiles will get used against infantry. Remember the soldiers using TOWs on Usay and his brother?
5. What level of bad weather? Effectively, if you're trained in the operation of this, you should be able to fly in practically any weather a heliocopter can fly in.
One of the other uses was to recover downed pilots. And there's been a proposal to the Coast Guard for the unit to be deployed in Search and Rescue.
Anyway, back to the neat pictures. Next, the Super Hind!