She also said this though: "This iteration of Star Trek is going to have a different take than the others in the Star Trek canon". So it sounds like it will be even "rawer and grittier" than DS9. I really hope they won't turn Star Trek into Battlestar Galactica. That would be horrible. They already tried the same with Stargate and the result was this mess called SGU. "Raw and gritty" tend to be used as descriptions for kind of dark series, in which the characters are very flawed, often to the degree of becoming unlikeable, and which don't have an optimistic tone or much humour in it. I really hope DIS won't be like this. They already ruined Stargate with their obsession of making everything "rawer and grittier". I hope Star Trek won't be the next victim. There is nothing wrong with making a lighter series.
SGU wasn't bad because it was "rawer and grittier", it was bad because it was slow paced and had boring storytelling. Also the characters weren't very likeable. I liked BSG, I adore DS9 and I hope DSC will be "rawer and grittier", while also staying inside the established realms of Star Trek regarding Canon (not design-wise, just pimp it up) & philosophy. The story being dark, doesn't mean, that the vision of the future can't be generally positive. Bad things do happen to good people...