`kele-get` fails to get resource not in current default namespace(?)

With default namespace set to `kube-system`, `M-x kele-get RET pods RET kube-proxy RET` returns the resource successfully. However, `M-x kele-get RET pods RET fake-job RET` does not:
```
Kele failed in querying the Kubernetes API
```

Pointedly, `fake-job-whatever` lives in `default` namespace.