I don't know how many times people have to say this, but being a part of a marginalized group does not exempt one from criticism. If a work that someone produces reinforces, trivializes, or ignores very real issues that affect people in real life, regardless of the intent or of the creators status, the consequence will be criticism, as it should be. This is something that Veronica Roth and others seem to have forgotten when Roth revealed in an interview for USA Today that she suffers (or suffered) from chronic pain. This after she received criticism for an ableist comment made by an NPR reporter as well as the ableist content of her newest release entitled Carve the Mark.
folks on Book Twitter noted, the same racist tropes that Keira Drake's The Continent was criticized for made an appearance in this novel as well. The aggressive and violent fictional races of fantasy and science fiction are more often connected to African, Native, or Islamic cultures than any other, especially when contrasted with intellectual, "peace-loving", lighter-skinned fictional races, which are typically coded as either European or East Asian. It's a very common, insidious trope within all forms of entertainment, and CtM is just the latest in a long history of narrative cliches that are predicated on dehumanizing and debasing people of color as ruthless savages that only want to harm others.
With the official release of the book today January 17, another criticism that has arisen about the book is the ableist nature of Cyra's currentgift - the name of the magical power within CtM - which has her enduring constant pain and being able to give that pain to others. As both Ana Mardoll (@AnaMardoll) and Tess Sharpe (@sharpegirl) noted in their respective threads here and here, this is a poorly conceived idea that has serious ramifications on how people with disabilities are perceived and treated. We already have ingrained ideas about what it means to have a disability: that being born with a physical or mental disability is somehow the fault of parents, accruing a disability later in life is the fault of the afflicted, "what doesn't kill you makes you stronger", the idea is that there's blame to be placed for having a disability and not that it's due to happenstance majority of the time, so to have the concept of the currentgift be linked to personality, thereby equating Cyra's pain as "you brought this on yourself" (because black women and our damn attitudes) is not only maddening, but also disgusting.
At this unfortunate intersection, Roth is also reinforcing the fatal myth that black people are capable of enduring greater pain than white people, and that idea has real world consequences, noted by a study that found that medical students believe false biological concepts about black people and therefore provide inadequate medical advice to their black patients.   
Claiming a marginalized status when faced with critique and admonishment has not ever and will never excuse perpetuating harmful stereotypes, intentional or unintentional, which is why such phrases like internalized racism/ableism/misogyny/homophobia, etc., exist. If I wrote a novel set on the South Side of Chicago about a young black man that joins a gang literally for the LOLz, me being Black would not make that concept any less of a dangerous and racist oversimplification of the causes of gang violence, which are numerous; so Roth is not getting a pass (at least not from me).
That may not at all have been Roth's intention, but as Sharpe said, "[i]t's not just hurtful [,] [i]t's carelss [and] tells me that you probably didn't think very deeply about the parallels and consequences" and no amount of "it was never my intention" will change nor negate the impact that CtM and Cyra will have.
If we want to dismantle these egregious concepts we have to hold people accountable when they sustain them, whether through what they write, what the say, paint, draw, or excuse from others, accountability is key.
She wrote it, now she's gotta own up to it.