The function Activity completion works differently than in other Moodle modules

Hi to all,

Require view - Student must view this activity to complete it - in other modules means that he has called the activity.

In the book module, the user must have been on the last page of the book.
This is not logical. in the Lesson module there is the function Require end reached -
Student must reach the end of lesson page to complete this activity.

The linked video is in German, but shows the problem.