If you choose "Key Moments", and run it on a "listicle" YouTube video -- i.e., one of those videos where they say "8 Movie Endings You'll Never Believe", etc. -- it almost never successfully lists and summarizes the items spoken of in the title.
For testing purposes, it is easy to test this with videos from Screen Rant.
For example: "Wednesday: 25 Things You Missed" and the Universal Summarizer results.
You may want to see if some kind of instruction like the following would work:
When summarizing a 'listicle' article or video, ensure that you include every item mentioned in the list. For example, if the article or video is titled '8 Items You Must Have in Your Travel Backpack,' your summary must explicitly mention and describe all eight items. Provide a concise description of each item while maintaining the original list's order and context. Do not omit any items or generalize the list without specifying each point.
I would expect each item of a 'listicle' to be named and/or summarized, as it is essentially a "key moment" in the video.