Is it just me, or does this article not answer where eels come from? They are from the Sargasso Sea! Oh wait, except we actually went there and checked and... n

Is it just me, or does this article not answer where eels come from? They are from the Sargasso Sea! Oh wait, except we actually went there and checked and... nope. No eels. Is the article correct that we still have never seen eels mate and have no idea how/where they do it?