I think the "Single line commit changes" is a worthy goal. But I don't think these changes make this more possible.
It is true. It only improves this aspect when adding elements to the end of objects.
But the real advantage I felt was punctuation confusion reduction when having mixed object definitions and callbacks.
The proposed format kills the readability of nested objects IMO.
I have been using this format with deeply nested objects and found readability to be improved. How does it kill readability ? Could you provide an example ?