I don't mind the roleplay battles, but I am a bit peeved by battles and cutscenes that we bear witness to - but that our character does not. I feel like we should not have knowledge of things that our character does not, but we've seen things like
Uriange's conversation with Elidibus prior to his "joining" the Warriors of Darkness, Elidibus conversing with the Warrior of Darkness on the moon, Solus's reprimanding of Varis in the Garlean throne room
and so on and so forth. We should discover this stuff when the WoL does, since the WoL is, essentially, our viewpoint character in the game.
So the battle as Y'shtola was fine. Our character was there to see it. Alphinaud's, not so much. We shouldn't even know about the Shadowhunter yet.