It isn't ignorance; it is essential. Science always proposes naturalistic explanations. That is what science does. Then it tests the hypothesis. If the hypothesis fails, another naturalistic hypothesis will be proposed. That is what science does.
Sounds one sided, but what is the purpose of proposing explanations that can't be tested?
Science doesn't 'propose' anything. Science is not a sentient being. Accepting or dismissing ideas is something a sentient being would do.