OK, so I have no firsthand knowledge of this and it is way above my paygrade, let me just start with that...
From my TBS buddies and others that are in Iraq as platoon commanders and what not, they seem to think the amount of air is excessive, especially with how "non-kinetic" things have been of late. And even if things do get nasty, a 500 pound bomb is usually not the right solution these days-- you know, civil affairs and all. So why the rush to send all these newly winged guys to be FACs?
I understand the IAs for MITT teams and UAV squadrons a little more.
Not to mention the "air" is doing a lot more than just dropping bombs. But, you're right that it's still excessive. With that being said, they're beginning to be directed elsewhere because of that.