On the list of workflow resources, the new resource Transport has a footnote indicating that this "resource takes on characteristics of both "requests" and "events" and thus shares characteristics from both patterns" similar to Task.

But in the list above Transport is just shown under the Events and not under the Requests as well.

This probably might be due to the fact that this resource is very new and its scope not yet fully defined. Nonetheless the definition of it on the workflow page should be clarified.