Not a terribly important point, but we never really got to know Thor’s little merry band either. In fact, we cared so little about them I bet most people barely noticed almost all of them died in Ragnarok.
And Thor never reacted to it either. So not to say that it brings one movie up ahead of the other, but side characters with no backstory and little fanfare aren’t exactly abnormal in Marvel movies.
However, at the very least, Captain Marvel gets away with having the sword dude from Guardians of the Galaxy being a former member of Carol’s team. That was at least a clever nod and we knew enough about that character to be like “Oh, hey, it’s that guy,” as opposed to Lady Sif and the three nobodies.
You can make the Kree argument against Asgard too, it’s one of the reasons why the much smaller, more closely bonded refugee Asgard is so much more interesting. I don’t think you should hold that argument as something Dark World has over Captain Marvel.
[spoiler]If you want my own opinion on which of the two is better, I have to say Captain Marvel. Not to say Captain Marvel is good, but I think if you compare the execution of both, Captain Marvel is competent but boring, while Dark World is offensively bland. It was the only Marvel movie I ever watched that I wanted to stop watching, and this was when it first came out mind you. It does a couple things right, I particularly like the ending where we get to see Loki pretending to be Odin, but he’s really the only good part of the movie. It’s also a shame that revelation had to come at the expense of yet another fake Loki death, but I suppose its just a trope of the character at this point.
Either way, everything about Dark World is bland, boring, very cookie-cutter, has no personality, and no emotion. The movie on the whole is so by-the-books that it’s offensive. Captain Marvel, while managing to have the least engaging protagonist of any Marvel film, at least has a good atmosphere, an interesting setting (that it ultimately doesn’t do anything with, but hey, it’s better than present day D.C. for your finale), and some form of a message to take away from it. It also has Samuel L. Jackson.[/spoiler]