Well yes, in theory if all the developers read JS's formal specification JS would be better. But in practice developers just wing it without reading anything, a

Well yes, in theory if all the developers read JS's formal specification JS would be better. But in practice developers just wing it without reading anything, and only go to read things when getting an unexpected result. And so we get the follow outcome - python behaves as expected in more cases than JS behaves as expected. "Theory is great in theory, but in practice, practice is better"