Doctrine, a French startup is actually doing this. https://www.doctrine.fr [Disclaimer: I'm a Data Scientist @ Doctrine]

Part of the reason why we are the only one providing something clear is that, indeed, law data is a mess, and we working hard to have a clean & consistent database.

As simple point as legal references is really complex. Every country has it's own identifier system , some editor have their own identifier system and people are referencing in really different manners...

The second point is that, we really heavily on NLP/DL to extract insights and informations about the data. This is something that couldn't have been done /easily/ in the past.

Shameless plug: We are hiring! https://doctrine.typeform.com/to/uyjXoE [French only]