I think being able to use PerchFactory::get_filtered_listing() for admin listings would make it easier for app developers to build more complex filterable admin lists where PerchFactory::get_by() isn't enough.
For non-paginated lists, the method works fine:
However, it is trickier to implement paginated lists this way given PerchAdminListing requires a PerchPaging instance for pagination. It would be nice to be able to pass a PerchPaging instance to get_filtered_listing(). Perhaps with an additional parameter:
Or by using the existing paginate option: