Don't start a boss fight if someone is watching a cutscene

[Hokulol]

How is watching a cut-scene for the first time, especially a story-centric cutscene, lack of common sense. I would understand it if it were the starting cutscene at the beginning of the dungeon, or if there hadn't been the warning that this was one or more player's first time in the dungeon, but neither of those were the case.

It's common sense not to start the encounter while someone in your party is marked in a cut scene. I never said or intended that it was common sense to not watch the cut scene. Not trying to condescend to you, but, you are aware players are marked in the party UI, right?