Why do I have to patch backend code to make specific http codes work????

I followed https://stackoverflow.com/a/67662363 and it worked, why does Odoo not support returning custom http status code in controller that has type=json??

Why is http code always hardcoded to 200? (unless we raise 3 very specific exceptions (NotFound, AuthenticationError, SessionExpiredException) you can see this here https://github.com/odoo/odoo/blob/8a8faa79929448ebd87dd58b3a7486717616334f/odoo/http.py#L654

I swear working with Odoo is so frustrating.

Is there any other way aside from monkeypatching?