I'm not a fan on how JSON makes the entire thing one straight line stretching into infinity. Making it very hard to find anything. But yeah, the alternative is a massive wall of text that basically murder my eyes.
As for 'easy' to mod part... not too sure about that since I can't figure out how to use the inbuild mod editor yet (is it even useable now?). I'm hoping there's a way we can add in game event to go alongside unique characters once it's finished.