I think that whoever wrote it needs to learn the differences between "Their", "There", and "They're", and when to use each in the appropriate context.
Otherwise, it seems obvious to me that the authors of the first and second paragraphs are two different people.
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.