Good post, pretty much agree with most of what OP has written.
deathcoy
Arty is extremely deadly in AoS. I love spamming Artemis and Cronus, the group AI is smart, they'll automate shooting and retreating while i prepare my other battalion for melee. Like you mentioned, shields are kinda their hard counter but its not implemented in AoS, not sure if the devs intend to add in shield units or shield generators but hopefully they do at least put in those dome shield units.
Yea, those should be added. But later in 2016. Generally AoS is missing Game Enders in form of nukes/arti/cannon and experimentals. I've ran into a couple of stalemate battles and it dragged too long, luckily people start to d/c. However there should be a toggle to enable/disable for both Game Ender Structures and Experimentals when creating a session.