Complex sentence: The short was not played before "Coco" at press screenings, as a result most of the coverage has been regarding fan reaction to the inclusion of the short before the Pixar film, rather than the merits of the short itself.
Split into simpler sentences: The short was not played before "Coco" at press screenings. As a result, most of the coverage has been regarding fan reaction to the inclusion of the short before the Pixar film, rather than the merits of the short itself.