[This is literally what he was just saying to Hwylryn so yeah. He's in agreement here.]

That's my theory as well. The fact that he chose Hwylryn to kill Chu Wenshan rather than doing it himself lends further credence to that, as does him making all of us watch it happen.

[And the fact that he's here amongst the group makes him even more certain, not that he's going to say as much out loud.]

If what he's after are strong emotions, what better way to orchestrate them?