This is of course intentional. As far as I can tell, though, you can't delete a non-empty subdirectory owned by root containing files that are also owned by root, even if you own the directory containing that subdirectory. In order to delete the subdirectory you need to delete the files in it, and you can't do that unless you have permission to modify that subdirectory.
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This is of course intentional. As far as I can tell, though, you can't delete a non-empty subdirectory owned by root containing files that are also owned by root, even if you own the directory containing that subdirectory. In order to delete the subdirectory you need to delete the files in it, and you can't do that unless you have permission to modify that subdirectory.