`Language` index gone in Plone 5.2?

Plone 5.2 does no longer install a Language index...bug or feature?

Installing plone.app.multilingual sets up the Language index.

Gently, I would call it a feature. In monolingual sites the index is just dead ballast. So, there are probably use-cases where someone needs it w/o p.a.multilingual. If its related to an alternative add-on I would suggest to make the add-on to set it up on its own.

Mea culpa...