(PDF) Storifying Instructional Videos on Online Credibility Evaluation: Examining Engagement and Learning
This study researched whether adding story elements to an instructional video affects motivation, emotional engagement, and learning. In the research, they explain that they did not find any difference between a well-produced instructional video and a storified instructional video.
However, the storified video feels very artificial to me. This isn't a story about a relevant character the learners can identify with who uses the concepts in realistic situations (or even slightly exaggerated ones). This is about a fake detective agency. I'd be cautious about assuming this research applies to realistic stories as well.