I think the Raphael's scene, is too early in the game, it should play after Astarion's nibble scene.
I agree.
I agree, unless there's some hidden story reason why it has to be after talking to Nettie. For example, Rath or some other druid is Raphael, or something, in disguise, and his scene is triggered because he eavesdropped on you and Nettie. 😯
I doubt that's even remotely close to the case.