Just had a thought, carrying over from my days with Battlefleet Gothic.
The ships of armada arn't little fuel carrying snubfighters going poof when they are killed, they are metal behemoths powered by captured suns or dark energy or anti-matter reactors. Those powerplants usually don't fade quietly into the night once killed. They like to go with a bang.
I wonder if there will be a mechanic for destroyed ships to potentially blow up in a big way, damaging nearby ships. Not a garranteed, but their should be a chance for mini novas upon a kill