You keep making the mistake I pointed out, that the Shivans actions necessarily imply they are acting reactionaryly against GTVA escalation. This is not so. The Ravana fleet was stationed in the Nebula system, and when it was clear the Knossos portal was open, the Sathanas fleet started moving towards the Capella sun. None of this necessarily implies any escalation nor even "reactionary" strategic planning on the part of Shivans, but one single decision process to engage the Capella star when the door became open.
The Shivans knew the Knossos was open from the very beginning, their first appearance was sending a cruiser through. If the Sathanas fleet started moving towards Capella the moment the door was open, the game would have ended before the Colossus even appeared.
I disagree. The first small contingent that went through the Knossos was part of the Ravana fleet, reacting to the Trinity appearance, etc. It's quite probable that the Sathanas fleet was signaled to enter the Capella system right at that moment, they just took longer to get there (they come from several systems away as seen in the SoC mission). It seems that the Ravana fleet is similar in scope and in purpose as the Lucifer fleet was in FS1 (and also metatextually), while the Sathanas fleet exists for a very different purpose (like building nodes and so on by blowing up stars).
Collapsing stars is just as valid a tactic as glassing planets. The Lucifer didn't bother chasing down every ineffective warship in the system before reducing Vasuda Prime to dust.
No it's not. We disagree fundamentally here. Not only did they let the vasudans and the humans off the hook by ignoring their attempts to destroy the nodes (and thus miss their opportunity to cleanse them), you don't just destroy a fourth of your "military fleet" by blowing up suns to get to those GTVA targets who were already fleeing from the system. It's also heavily implied by the Petrarch speech that while it was first suspected it was a weapon of such unforeseen proportions, the last speculation is entirely different in nature (and compared with the effort the humans will make in building the node towards Sol).
It's just idiotic tactics. You can easily glass planets with a single Sathanas for each one, and there would be nothing the GTVA could do to stop it. In
Their Finest Hour their fleet was already pretty much done with. And while they are alien, writing on top of that "idiotic" is just idiotic.
The Sathanas fleet pours in rapidly and en masse. You see, what, eight, arrive, in the fifteen minutes you spend with the SoC? Sathanas 1 is so far ahead of the pack that the only way it isn't solo is if it's piloted by Shivan Leeroy Jenkins.
It could be. As I said, it might have come as a "surprise" (after properly translated to shivan terms) that the Sathanas was blown up, but just as well they just hammered on. I'm not even convinced the Sathanas fleet should be seen as running a "clockwork" route. Think of it as "ok, let's get these 80+ juggernaughts in place, gather them up and tell them to go there as fast as possible kthnksbye".