It's very hard to algorithmically translate Latin, a lot harder than other languages. It is an ancient language that was used differently throughout the ages. Obviously the old Latin from the time when Rome was just a kingdom in the Italian Peninsula, the Latin of Virgil, the Latin of medieval laws and the Latin used today in the Vatican are very different from each other, not grammatically or in vocabulary but in idioms, methaphores, etc., stuff that really make a language unique. It is hard enough even for humans to translate old Latin texts sometimes.

Still, I don't doubt that the clever people at Google would be able to manage to do it, I'm just saying that it's a lot harder than translating from or to a modern language.