if your idea of representation is painting something black and then going 'yaas gurl' or some stuff then that's not actual representation
also why do you sjws strive for someone else creating 'representation' instead of going out and representing yourselves
i imagine because making popular media could be considered a pretty hard thing to do, and i'm guessing the problem that people are seeing is that the people in charge of making these casting/writing decisions like this aren't doing it
but yeah, representation is definitely something that is sociologically significant, media and entertainment has a massive impact on people's lives and views, especially now. but of course, representation for the sake of representation isn't very compelling and it isn't very endearing. real, strong characters that people can relate to are much more valuable, and that's why some shows like game of thrones and steven universe get the attention that they do for this, because they don't just shoehorn this stuff in for the sake of having it, and that's what people really appreciate. the thor thing beachbum posted seemed to be a pretty good indicator that the writers didn't really know what they were doing with the character. it was only one page, but i feel like that might be a good example of a bad example.
if you're making your lead character a black woman just to strengthen egalitarian undertones you're probably doing it wrong in this particular instance, but again, we don't really know anything aside from the fact that it's happening. if the writers pull it off, great, if not, oh well, guess they have to try something else in the future