About to propose, Facebook can fuck off?

Would you be offended if you were asked (nicely!) to keep such a major life announcement off Facebook? I don't hate Facebook, but I do hate how impersonal it is. I literally can't stand the idea that friends on both sides would find out about the happiest moment of our lives on a "social media" service, doubly so for our closest friends and family...Or do I need to be dragged into the modern age?