This is only relevant if you allow code to define config. If you use conditionals and loops to create config, and then view the final json, it quickly becomes

This is only relevant if you allow code to define config. If you use conditionals and loops to create config, and then view the final json, it quickly becomes annoying when you know the thing you want to change in the final json, but have to trace backwards through the code to figure out where to change it. So programmatic configs only work if you have this "value tracing" capability. Which nothing really does.