So, I've been doing some troubleshooting on why Jarl Siddgeir of Falkreath and the others have been standing around in their editor locations doing nothing, and I have found the cause:

The quest DialogueFalkreath failed to start correctly at the beginning of the game, SQVing the quest shows all the aliases are currently set to NONE.

So what I really need to know at this point is this: how can I manually restart the quest? Simply typing "startquest dialoguefalkreath" in the console doesn't work (likely due to borked aliases canceling the initialization), so how do I get those aliases back in line?

My thought: create a temp plugin that will engage a script to force-refill those aliases back to what they should be. Since they don't ever change, that should be viable.