Why can hasan and gharib both accurately describe a single report?

Hasan li-Dhatihi, Sahih li-Ghayrihi, and al-Tirmidhi’s Composite Terms

• One describes its acceptability, the other its relative singularity
• Both labels denote identical degrees of narrator precision
• Hasan denotes only continuity and gharib only uprightness
• Singularity necessarily cancels the acceptance denoted by hasan