The idea that the universe is rationally ordered and comprehensible was foundational to early Christianity, and actually helped set it apart from its contemporaries.
Believe it or not, belief in witches or magic was often banned by the Church, because the idea that the material universe could be upended by the devil was, frankly, offensive. It was this very idea that caused the Church to sponsor early universities in Europe. And that's not even getting into the history of how often science has grown out of sincere religious faith in Islam, Hinduism, etc.
There are always going to be superstitious people, don't get me wrong, and in a way it makes sense. The Universe is a genuinely vast and wonderful place with all kinds of weird stuff in it, the greatest of which is genuinely Transcendent.
In a very real way, the eclipse is a sign from God, in the sense that existence is a sign from God, or a sign of God, if you prefer (though not at all in the way creationists mean it). We can study the eclipse and predict its path, for the same reason we can figure out where the weather will be best to see it, for the same reason we could build the roads and cars to get to those locations, etc, etc.
The cosmos is the good creation of Reason and Love.
We can understand the cosmos, because it wants to be understood. When we learn mathematics, science, biology, or study the natural world in any way, we are learning the language of the One who creates and sustains all things through an act of gratuitous, overflowing Love. We are children delighting in the gift of our Father, Who in turn calls us to learn deeper mysteries, hidden within ourselves and the universe around us.