The zorbacmd command-line arguments --uri-path, --lib-path, and --module-path modify the StaticContext that runs the query. However, if this query invokes the fetch module, the invocation of fetch:content() is in a separate StaticContext that does not inherit those paths. The upshot is that you can't fetch content from any custom paths, only the build-in Zorba paths.
The zorbacmd command-line arguments --uri-path, --lib-path, and --module-path modify the StaticContext that runs the query. However, if this query invokes the fetch module, the invocation of fetch:content() is in a separate StaticContext that does not inherit those paths. The upshot is that you can't fetch content from any custom paths, only the build-in Zorba paths.