> The point of JSON is to have a lighter and simpler way of data interchange, where the data is arrays and maps of strings and numbers. It also works well with Javascript.

I contend there's no "point" to JSON at all. JSON is simply JavaScript (in fact, you can eval it) that was discovered could be used to send data from servers to browsers. It became a standard out of sheer convenience.

By breaking Javascript's ability to execute the code, you're eliminating an important feature of JSON. (I'll admit that nobody should be eval'ing JSON, but the fact that you can makes its existence better understood.)