Yes, your users are smart. But they want to be delighted. Too many features can feel noisy. It’s like the app is screaming at you or suffering from an identify crisis.
I don’t want to be delighted, I just want to get my work done. This infatuation with “delight” is a distraction and I’m fine with “noisy” apps. In fact I prefer them in many cases. Unless I’m playing a game, I suppose, then please do delight me.