Use Case for Optional Area feature

As i understand this feature, it’s supposed to allow me to restore an area of a component without doing a full update of the component.

But in practice the only way i could get PG to restore a deleted area was to update the instance of the component which not only brings back the area in question but does all the other update actions as well (some of which may not be wanted).

So there is in effect no actual way to restore only part of a component and this feature is redundant to the brute force “update component instance” from the context menu… unless i’m missing something