The first Autobot that Ratchet resurrects is Cliffjumper, which might seem odd at first given how small he is compared to the other Autobots, but that’s the point. His smaller size means he likely consumes less Energon, a resource the Autobots are lacking in, while still providing a capable fighter to their ranks.
In Issue #4, the humans at the hospital are left in a dire situation. The Decepticon attack knocked out all power, leaving many patients on life support or in need of medical attention at risk, until Optimus uses the last of the Matrix’s power to restore the hospital’s electricity, saving dozens of lives in the process. In other words, Optimus lights their darkest hour.
If Starscream wanted to revive the Decepticons, why start with restoring the Constructicons and their massively energy-inefficient combined form? Because the Constructicons are not only warriors, they are expert engineers, meaning that they can contribute to revival efforts even without entering combat, lessening the strain on the limited reserves. That being said, though, this is still Skybound Starscream, meaning that this was more to simply flat-out win by using Devastator rather than anything more practical.
Optimus previously stated that he last remembered Starscream cowering before Megatron's fusion cannon the last time the Seeker encountered it. However, when we see the last time Starscream interacted with Megatron, he was actually quite bold around it. Why did Optimus make that claim? Simple. He was referring to the last interaction between Starscream and Megatron that he saw. The shot Starscream took to send Megatron plummeting from the Ark was something Prime didn't witness firsthand, and therefore would have no knowledge of.
