Krishna anyway had to leave for Mathura. He couldn't have stayed in barsana/vrindavan even if he had wanted to.
There was practically no need to show this track of Barsana in danger and Radha asking Krishna to leave.
I felt bad to see Barsana inhabitants being so selfish and insensitive to ask Krishna to leave and more weirder to see Radha who was ready to put their lives in danger but not vacate the place asking Krishna to leave to save their lives. Yesterday's entire episode was weird and didn't make any sense.
Instead they could have just shown Krishna bidding goodbye to Radha and all inhabitants of Barsana and Vrindavan again and returning to Mathura which was the real truth.
There was no need to show so much drama.