Why did the political situation in Palestine affect the compilation of the Jerusalem Talmud?

The compilation of the Jerusalem Talmud was significantly influenced by the deteriorating political situation in Palestine during the 4th century CE. As Roman rule and the associated social and political pressures intensified, the stability of the Palestinian academies became increasingly precarious.12

The compilation is widely considered to have been a "rescue operation" intended to preserve the Halakhic material and legal traditions developed by the amoraim in Palestinian centers such as Caesarea and Tiberias. Because the worsening political climate forced many scholars to emigrate to Babylonia, the need to codify these teachings became urgent to prevent their loss. Consequently, the Jerusalem Talmud remains shorter than its Babylonian counterpart and, having been compiled under such duress, was never subjected to a final, comprehensive redaction, leaving many of its discussions incomplete.12