I never said the Shadow's servants were dormant, just the Shadows themselves and that they were definitely awoken at least a century ahead of schedule. Their servants were mostly keeping quiet and keeping things running while their masters slept. That includes sending out vessels to retrieve any of the seeded derelicts if they are discovered. There's no way they'd start kicking off wars on their own initiative.
I'm sorry but even leaving that aside it makes zero sense for the Dilgar thing to have anything to do with either the Shadows and the Vorlons. For one thing the Vorlons didn't start striking down Shadow supported worlds directly until *after* Sheridan's bombing on Zha'dum, so they idea that they're responsible for the supernova is out.
Besides, there's already a perfectly straightforward accounting for the Dilgar's motivation: they knew their sun was dying and they tried to forge a new Empire rather than live as refugees. The gambit failed and they all died. The End.
I'm sorry but even leaving that aside it makes zero sense for the Dilgar thing to have anything to do with either the Shadows and the Vorlons. For one thing the Vorlons didn't start striking down Shadow supported worlds directly until *after* Sheridan's bombing on Zha'dum, so they idea that they're responsible for the supernova is out.
Besides, there's already a perfectly straightforward accounting for the Dilgar's motivation: they knew their sun was dying and they tried to forge a new Empire rather than live as refugees. The gambit failed and they all died. The End.