What are your specific concerns about SAS? Josh and I got advance copies of the book for our segment on EDR, so I can look things up if you have a question.
In general, the new SAS rules look pretty good to me. Despite what the Spartan blog post says, I think you actually lose some flexibility with carrier models under the new rules, as you can no longer split up their carrier value as you see fit; you are now limited to the wing sizes that are listed in the MAR. Something that wasn't discussed in the blog post is that recon planes no longer exist; its just Torpedo Bombers, Dive Bombers, and Fighters. Along with that, the smallest valid starting SAS size is now 3. On the flip side, carriers can now regenerate completely destroyed SAS, so they are never completely gone from the game. And, these measures should at least help address activation spam issues the game has had.