So it seems that IWorkspaceSearchCriteria only offers the ability to filter by owner name (setExactOwnerName), which is not a unique value (and doesn't seem tremendously useful)...not by owner ID, which is unique and more likely to be used programmatically (e.g., one would often want to filter results by the id that is logged in).

Are there any plans to fix/enhance this? Obviously we can do post-filtering on an IWorkspace object, but it seems like IWorkspaceSearchCriteria was the proper place for this functionality.