Has anyone had an issue using the async keyword in entry point functions such as post or get in RESTlet script types?

Our team has noticed that if you make a entry point function like post async, it results in an unexpected error if you throw anything. For example, the simple script below, it is responding with an unexpected error:

/**
 *@NApiVersion 2.1
 *@NScriptType Restlet
 */


define(
    ["N/error"],
    function (error) {
        async function _post(context) {
            throw error.create({ name: "MY_ERROR", message: "This is my error" })
        }


        return {
            post: _post,
        };
    });

JSON Response:

{
    "error": {
        "code": "UNEXPECTED_ERROR",
        "message": "An unexpected SuiteScript error has occurred"
    }
}

We would have expect it to respond with this though: