Why would God?

[Esquilax]

So the testimony of a reliable witness is not considered evidence? I'd like to see you try justifying that one in a court of law.

Just so long as you do the reverse: how many courts would accept testimony that involves magic, regardless of how otherwise reliable the witness is? More likely, they'd conclude that the witness is mistaken or less reliable than they first appear.

What's more likely: that somebody had an experience that violates everything we know to be true about the world, or that someone made a mistake?