#3 Worst: Not advancing the Swann-Callihan storyline at all
So, Swann and Mack teamed up to take on oVe at the top of the show. While Mathews addressed the storyline between Callihan and Swann and their shared history on commentary, it was not advanced during the show.
Sami Callihan would appear later during the show and have a match with Puma King with no real stakes at all. It was a good match for what it was but the compelling storyline between Swann and him would not be touched upon for the duration of the episode.
In my mind, this is a definite 'worst' because you had two whole hours to tell a story but you chose to not advance an arc that had built up quite nicely. The audience member may stop caring about the storyline entirely, because Callihan didn't even accompany oVe to the ring, this week.
Also, why is nobody stepping up to challenge Rich Swann for the X-Division title yet?