I'm pretty sure barging into the room was Agatha's fault, but whatever.
I agree with Balud on all three counts. Agatha is worth cutting ties with stupid nobles for, she would make a terrifying big sister, and Silk already considers her a sister of sorts anyway.
This is just to make it an even greater flex when Balud solos future aggressors, isn't it? Nobody can even claim to have contributed at that point. It's probably acting as quite the bait too.