Ceiling paint looks patchy after fix

[Glenn Mcgrath]

Hello.

I had a cracked pipe boot and observed a small leak in the ceiling, the leak has been fixed and the ceiling patched but its looking patchy now after the contractor left. He said everything will look even after things dry up, but it looks patchy , I did not expect this to happen since its all white , am I supposed to paint the entire ceiling now? appreciate your inputs.

Thanks