The stock-footage system really weakens this series
I realize that the stock-footage was necessary, for cost-cutting, but honestly, it makes this series much weaker than it could have been.
Look at the quality of the opening sequence. If the entire show could have had that kind of quality of animation, then it would have been far superior. Perhaps that would have made it too costly to create, and if so, that's a shame. But even if one tries to approach this series with a lot of generosity (and I have), the weakness of the animation severely detracts from one's enjoyment.
I've recently been on an "'80s animation" kick, and even comparing Blackstar to the work of the '80s Marvel outfit (the one that did Inhumanoids and Jem and the Holograms and such), it's remarkable how much better the Marvel quality is to this, as a whole.