Act 10 Ossuary: an interesting potential problem? (meaningless for most)

So I've been thinking about this for a while now...

Act 10 Ossuary is a small area with a TON of stuff packed into it for no real reason.

There is a quest. There is the book for Divinia. There is a Lab Trial. There is a crafting recipe.

Why are four things shoved into this little area? There are plenty of other places that have nothing...