Why is CouchDB taken out when I choose "Object-oriented: No" ? To quote the CouchDB website: "What it is Not" An object-oriented database. Or more specifical

Why is CouchDB taken out when I choose "Object-oriented: No" ? To quote the CouchDB website: "What it is Not" An object-oriented database. Or more specifically, meant to function as a seamless persistence layer for an OO programming language.