They make save stats of the server data for every server before the implement each patch. All of what we did will be back once they fix the environmental rollback that occured.
Basically while many of the systems were 1.2, legacy, custom ui, etc, the environment glitched and rolledback to 1.1.5 which meant no blackhole, no novare coast, no changes made to the environment post 1.1.5.
So whatever whining people have building up needs to get chilled. Sure, 8-9 hours gone, but maybe folks can spend that time eating, sleeping, doing something else, interacting with another human being instead of obviously spending 100% of it on swtor.
And since this is such a huge screw up, maybe we'll get something nice out of it, a custom speeder? I don't know.