NotImplemented error not being caught

[SystemsPurge]

The villas-relay manager inherits its run_action from the Manager class (manager.py), where there is the following code:

def run_action(self, action, payload):
        if action == 'create':
            self.create(payload)
        elif action == 'delete':
            self.delete(payload)
        else:
            super().run_action(action, payload)

    def create(self, payload):
        raise NotImplementedError()

    def delete(self, payload):
        raise NotImplementedError()

On post, the component handler (/handlers/component.py) , does not block this:

@with_component
    def post(self, component):
        payload = json.loads(self.request.body)

        action = payload.get('action')
        if action is None:
            raise HTTPError(HTTPStatus.BAD_REQUEST)

        try:
            component.run_action(action, payload)
            self.write(component.status)

        except SimulationException as se:
            self.write({
                'exception': {
                    'msg': se.msg,
                    'args': se.args
                },
                **component.status
            })
            self.send_error(HTTPStatus.BAD_REQUEST)

As it only catches SimulationException. This seems to cause the villas-relay manager not to respond over amqp anymore.
Seems like the villas-relay manager is not made to be told explicitely when to create a component, and instead poles the villasrelay endpoint periodically then creates gateways, however two other NotImplemented errors do get raised in the rscad and rtlab simulator components, so maybe a proper response is a good idea?