QOSCCM11 — simplified api (un)intall_service_reference

The spec defines the following methods

Cookie
install_service_reference(
in string service_id, in Object objref)
raises (CCMException);
Object
uninstall_service_reference(in Cookie ck)
raises (CCMException);

it is described that the service reference id is unique, so why do we need a cookie at all. It will simplify things for users if we do:

void
install_service_reference(
in string service_id, in Object objref)
raises (CCMException);
Object
uninstall_service_reference(in string service_id)
raises (CCMException);