CBImport from the URL needs clarification

The example of importing data from the URL listed in documentation doesn't work. I don't know if that's because the URL is not valid or because import from URL doesn't work in general.
 
https://docs.couchbase.com/server/6.0/tools/cbimport-json.html
 
$ cbimport json -c couchbase://127.0.0.1 -u Administrator -p password \ -b default -d http://data.org/list.json -f list -g key::%name%::#UUID# -t 4