Recognise the differences in services for preservation and services for sharing 

The umbrella term "repository" conflates two very different kinds of services - services whose primary purpose is to preserve a type of media, and services whose primary purpose is to enable media to be shared and used by people. They don't look the same, they have different kinds of users and roles, they don't share the same concerns, and you use different language to talk about their features. Maybe we would get further by having an amicable divorce, and only get together to talk about things that are completely generic, like storage.