Why do feature requests from churning users usually lead you down the wrong path?

When churn started ticking up, our immediate reflex was to poll canceling users and build whatever feature they asked for next. Unsurprisingly, it didn’t move the retention needle at all.

They weren't leaving because of a missing button; they a missing button they were leaving the core loop felt like extra homework on top of their existing stack.

How do you separate genuine product gaps from fundamental friction when diagnosing why paid users slip away?