I have worked on making software easy for users, and often I got them to see the app has no value much faster because by stripping complexity, I lost the tiny functionalities that made it useful for them.
"Understanding the logic behind these biases allows us to confront, moderate, and potentially use them positively. This directory takes a swift dive into various cognitive biases affecting our lives and work, aiming to help us design with greater awareness."
I think the word you need is complicated.