Answer:
The reason behind this argument is that they provided too much flexibility to the different rulers trying to win their loyalty that when the corruption of Rome weakened it, they didn't hesitate to fight for liberty. The political work required to rule the whole Mediterranean world was too much for Rome
Step-by-step explanation:
First o all we need to understand something. Rome was an incredibly extensive empire that without proper communication, and infrastructure to bond it, resulted in a very bad effort from the Romans. The task was too big for their political structure, and the flexibility they offered to the conquered rulers allowed them to fight for their liberty when Rome's corruption weakened it.