You mentioned Kanan's family. Of course, they have a direct link to him, they're supposed to. What about Famous' sister? Or that rich white woman with the dead dog? What purpose do they serve in Kanan's life? They're already being treated like they matter and we're supposed to care about what they do. It's an origin story about Kanan, these people aren't necessary for the narrative to move along. It would be like if the first season of Everybody Hates Chris gave plots to Risky and Kill Moves. They're entertaining characters, but Chris is the reason we watch the show. You need a strong entry point, especially when a majority of these characters are brand new and Book III doesn't have that yet.
And no, I don't prefer action over storytelling. I don't care about action like that. But Power prided itself on having action-based scenes and over-the-top fukkery. Did all of it work? No, but that's part of what made the show what it was. That's why it carried over to Book II and (presumably) Book IV. This show is just bland by comparison.
The reason I brought up Kanan killing Buck 20 is because of how important that scene was. It was Kanan's first kill. That's a rite of passage in the Power Universe. How does it affect Kanan psychologically? What are the consequences he suffers? How does his mindset change after this? These questions haven't been answered yet. More time is being spent on Jukebox's interracial love story and Raquel getting her titties clenched during sex.
I'll admit that it does feel old-school, and Ali Shaheed Muhammad and Adrian Younge are doing a great job with the score. But this show doesn't feel special right now. Even without the fukkery, the stories they're telling don't leave you like
begging for more.