I find this episode great too, but as you guys said, burned one slott of BOBF with content that could easily been told in Mando season 3.
Sometimes seems like the producers of this show just doesn’t know what to do with Boba Fett. Boba have ±25 years of unexplored content in the new canon, they could have explored his teenage years plus the time he worked for the empire, and a thousand other things. It’s sad that they spent four episodes to tell a story that could be told in two and now we get a Mandalorian episode in BOBF.
Regarding the Mandalorian, they want to set it up now, so they can start on Mandalore for season 3, after he visits Grogu in the Book of Boba Fett.
Season 3 will begin on Mandalore. These episodes are explaining the in between of both of those seasons.
With these chapters, we see how he got a ship, his purpose, etc, without having to waste those chapters explaining everything in season 3.