Who wants to use this page?
Fragment of a discussion from Talk:Languages by language family
About the last point: I've been thinking of making this page sortable by several criteria. If we were to use the usual CSS/JS based mechanism, that would mean to convert is to another kind of HTML representation. Imho not too much labour but maintainance was slightly lesss straightforward, then,
I have added a link to this page from the Translating:Statistics page.