Please consider implementing content filtering or moving Administrative Views and its dependencies into Drupal's core.
It's truly surprising in Drupal that - after site content grows 200+ nodes or Media/FileEntities - it becomes next to unmanageable. Being able to type-to-find a content item is about scalability too IMHO.
The main motivation behind my suggestion is the completness of out-of-the-box Drupal as a scalable CMS.