This has got to be the biggest "the map is the territory" meme in physics, right?
The idea that causality propagates at c because it takes the information of the event that long to reach us seems ludicrous.
If you were 30 light years from earth, it would not be true that Michael Jackson is still alive. Even when we talk about the light from distant stars, we say "this is what the star looked like in the distant past, it's not showing us the star as it is now" or talk about how Betelgeuse "may have already gone supernova".