Hi there! Hopefully this helps!
Benefits of repeated readings include helping all readers with fact recall, serves as a study strategy, aids in students' identification of what's important in their reading, such as main ideas and vocabulary, increases comprehension and results in more advanced questioning and insight, leads to faster reading and increased word recognition accuracy, and assists struggling readers as they transition from word-by-word reading to more meaningful phrasing.
I do agree that the text structure of "Cause and Effect" is appropriately placed in the sequence of multiple reads because paragraphs structured as cause and effect explain the reasons why something happened or the effects of something. If you wanted to get a better understanding of why something happens or what happened because of that something then it is great to reread the story!