I think the real issue here is deciding that just because "You can basically kill almost every encounter with spamming sneak attacks with Astarion and Cantrip magic" means you actually should. What if you changed your playstyle to potentially suboptimal yet interesting and unique strategies instead? What if you imposed a challenge on yourself like a No Astarion/Stealth run?
Hey Larian the game isn't fun when I play it like this.
Then don't play it like that.
It's too easy without stealth. You don't have to have an optimized build to walk through encounters after achieving the first few levels.
That said, I still think your solution is questionable. It's like, "Larian, the game is too easy when I use a weapon in combat."
And your response is, "Well, don't use a weapon, duh!"
