system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why doesn't the Executor have redundant command and control systems?

When the bridge of the Executor is struck and destroyed by a rogue A-Wing, the ship immediately veers off its present course and its orbit collapses into the surface of the Death Star. 

Why isn't there a backup system to prevent this? Surely the designers of such a large and advanced warship would have understood the value of redundancies so that the ship doesn't immediately become helpless if the (small, exposed) bridge is damaged?
gpt
I would posit that, normally, a super star destroyer wouldn't be so close to a gravitationally-strong object like the Death Star. It lost power, but before commands could be transferred elsewhere, it was claimed by the gravity well of the station.