It's been this way quite some time, and I'm sure I'm not the only one to wish there were tickets opened for errors during service calls, but here goes.
Is there a reason why there's a ticket opened when executing a controller, model, view, etc. normally, but no ticket opened when (for example) I decorate it and call it with @service.xmlrpc? (Assuming there's a 500 server error response returned to xmlrpc caller)