My goodness. That was an actual civil conversation between Pava and a (half) Klingon. And it ended without bloodshed. Let me just read that again to make doubly sure.
It's not a heartwarming reconciliation, that would be too much, but some form of at least intermediate closure and perhaps even the first step for final closure down the road. Gan'Louk may be closer to forgiving his dad now or at the very least accepting him. It's still a tough nut to swallow and I'd be surprised if all bygones are truly bygones already.
It's not easy to write scenes where stuff doesn't blow up all the time. This was very nice, very well paced and balanced. Good, gripping, emotional passage.