The text describes many degrees (marātib, مراتب) of Balāghah. Its highest boundary is the level of inimitability (ḥadd al-iʿjāz, حد الإعجاز), at which others are unable to produce an equivalent.
At the lower end, expression can be so weak that it scarcely meets the standard valued by trained rhetoricians. Between these extremes are many degrees of appropriateness and expressive power.
This is a qualitative hierarchy, not a numerical scoring system. Two sound rhetorical statements may differ appreciably in effectiveness.