Now we have closure for Georg, head of secret ops. Quite logical he is the one cleaning the nobility to finish the job he started.
The Souma/Georg prison scene and suicide in front of random guards was a way out for him to plunge into the shadows.
We also had that creepy short scene with nobles thinking they can still manipulate things their way.
And last the slaughter of those nobles and lineage at the trial.

I agree if you think that part of the story was rather weak. But they at least gave us key points to link these events.