It's like the US constitution and the bill of rights. Everything in the bill of rights is technically redundant and covered by principles already expressed in general form in the main constitution.

And yet that isn't actually good enough. Those general principles, being general rather than specific, require the key word, interpretation, in each new specific context. And different people with different goals can and do always ALWAYS warp interpretation in infinite ways that are all perfectly reasonable sounding on their face, and yet someone else can always produce a totally different interpretation, which also holds together.