No I don't think there is a good reason. You're completely missing that programming language syntax is designed for humans. You can still serialize all languages to json syntax trees, just like you can do so with lisp notation, Polish notation etc.
Or do you think we are at our peak?
You mean like every single idea/project/etc that ever existed before their invention?
From now on, when someone tells me something is a bad idea, I'll take it mean that I should examine it further.