How did feudalism possibly encourage linguistic differences among Romance-speaking regions?

The emergence of feudalism is considered a significant factor in the linguistic divergence of Romance-speaking regions. By shifting the social structure away from the open, integrated society of the Roman tradition, feudalism effectively split the population into small, closed territorial units.1

This fragmentation hindered broad communication and social cohesion, creating environments where local speech patterns could evolve in relative isolation. As these regions became more insular, the lack of centralized administrative or social unity allowed for the development of distinct vernacular forms, accelerating the transition from regional varieties of Latin into the diverse Romance languages recognized today.1