Wanting a game to be easy doesn't make you a "casual". My favorite game of all time is Divinity Original sin 2, but I can say without shadow of a doubt that the difficulty belongs at "adventure", if not "story mode". In my experience the only thing that higher difficulty does is make everything take longer. I guess if the game's gonna be short then that's alright though.
The tricky thing with the CRPG market is that there are the players who play it for the strategy and challenge, but then there are also the players who are just as "hard-core" as the first type, but it's Role-Playing that they're hard core about. And they would rather think about what their characters would do than what is smartest strategically. But I guess you can't please everyone can you?