I, too, found the series unengaging and boring. I didn't care about any of the characters or what they were trying to do. Ahsoka was so low energy and lax that it felt like she wasn't taking anything seriously, and Sabine didn't seem to care about much, either, except for finding Ezra for reasons that were barely explained.
I'm not a fan of J.J. Abrams' mystery box storytelling and Filoni's admiration for it really showed in this series. Ezra was a lot like Luke in TFA (the exiled Jedi that we spend most of the show trying to find), Thrawn was like Palpatine in TRoS (the rumored dead super villain that's back from defeat and also exiled) and the star map was like the devices used to find Luke and Palpatine.
Ezra was very underwhelming. The guy who supposedly defeated the mighty Thrawn and drove much of the plot for 6 episodes ended up being a space hippy who was living happily with his turtle friends. Ahsoka wasn't sure that he was even alive, but, in the last episode, she knew that he got off of Thrawn's ship and was "home." If she could sense that he was alive and safe in episode 8, maybe she should've known that he was alive and safe in episode 1. She then could've convinced the council to take the Thrawn threat seriously because, if Ezra was alive, then Thrawn could be, as well. Also, the Ezra actor wasn't very good.
Thrawn was a cooler reveal, but ultimately wasted. He didn't really do anything to earn our respect as a villain and then did nothing but lose and run away while trying to fool himself and others into believing that he outsmarted everyone and won.
For some reason, Baylen and his apprentice didn't even factor into the finale. I looked it up and Ray Stevenson didn't die until six months after filming wrapped, so that wasn't the reason. I suppose that the explanation is that they had already done their job as mercenaries, but it's odd and not very satisfying storytelling for your primary antagonists for most of the story to just disappear before the end.
I wasn't a fan of the witches. I don't want magic (beyond the Force) in Star Wars. It just makes the Force feel less special and Star Wars more fantasy like, which isn't the direction that I want to see.
The one thing about the show that I did like was the space visuals (with the exception of the space whales). For the most part, whenever the characters weren't on screen, it looked cool.
Overall, I don't have as strong of feelings against it as with 'Boba Fett' and 'Kenobi', but that's because I didn't care about the characters or what was going on. I'd say that it's still on their level in terms of writing, acting and directing. I certainly didn't find it as entertaining as The Mandalorian or as engaging as Andor.