That is an ancient backwards-compatibility hack that you should not rely on, and most certainly shouldn't try to make use of from user code. It exists because very ancient versions of pg_dump didn't know how to dump views as views. We're more likely to rip it out as no-longer-needed than to expand what it does.
Does that mean that the ability to point remote partitions to views (on the remote side) will be forbidden in the future? Currently this feature is saving a lot of work (and disk-space) for us, as it allows us to introduce significant changes to the partitioned tables model without the need to populate these changes on all the hundreds of past partitions that do exist (and that we barely read anyway, that's why they reside on a remote server).