I think the whole option is not needed, in general. See:

> I'd leave only `@observers`, and libs and users can enqueue there. To merit, they all look like client apps, it's the same.
https://github.com/tute/merit/pull/128#issuecomment-33161172

> We don't need to specify this array, `observers` is enough.
https://github.com/tute/merit/pull/128#discussion_r9128530