The absence of ad-tweets inserted into the API feed with an API term of "you must display these or we'll ban your app" was always weird. That said, I bet that

The absence of ad-tweets inserted into the API feed with an API term of "you must display these or we'll ban your app" was always weird. That said, I bet that the real thing they want is the control to be able to push the Twitter Blue premium features, which I'm sure third-party apps would just sideline as much as possible even if they made them all available through the API.