Overall, this is completely skippable, in my opinion, and is not needed to watch its sequel, which is better.

This story is not needed to watch and understand the sequel spinoff and since they aired at the same time, once you realized that they connect this feels so useless. Regardless the first two episodes were interesting. However, the third one was just having, in my opinion, really dumb plot points. They felt so out of the blue and it contrasted to the gruesome shots that had just played minutes before.

Definitely not something that is worth a rewatch. If you watch it, take what you need for the Zi-O vs Decade, and don't revisit this.