She does hit the nail on the head, however ungracefully, that the biggest difference that calls for the idea of a BLM campaign (and goes against the notion that it can be dismissed "because all lives matter") is that when a black person dies it seems people go to great lengths to dig up anything they can find about them to try and justify it, even if there's no way the police officer who killed them would've known about that at the time.
In general, and I'm not a conspiracy person or anything, I do feel the media lately seems to be on an odd campaign to try and obscure the BLM issue by focusing more and more on police officers being in danger, or it seems every time there's a shooting of an unarmed individual by the police there's suddenly a spike in feel-good stories about police officers. Listen, I've never had an issue with the police myself---but as a fairly affluent white male, I don't think it's fair or justified for me to say that all the police treat everyone else with fairness---but I do think there's a seedy element to all of this that makes me very distrustful in the overall police culture.
I don't like to read about anyone dying, but I'm naturally more sympathetic towards a citizen gunned down by the police than the other way around, because police officers I feel go into the position knowing that such a danger is possible. They're not conscripted, they willingly sign up understanding that's a risk---and it feels to me that they have better survival odds than a citizen considering they're presumably trained more so than your average citizen in self-defense. The police dying isn't good news by any means, but police taking lives I think is a far more worrying issue and something everyone regardless of creed or color should be concerned about. It's even weirder when you consider a large majority of these conservatives who dismiss the BLM movement are likely the same folks who go on-and-on about Obama creating a police state and how the police being the only ones with guns would be a dictatorship and such. But of course, I've always felt the biggest conspiracy folks are whites who live a relatively safe and worry-free life and need to create a sense their own sense of victimization to feel like they're important to the world.
I've been thinking this awhile, and it may sound crass, but I'm surprised The Onion's never done a parody article where they do this with a (fictitious) white victim gunned down in a similar fashion and then give reasons why it was "deserved". I think they could probably pull of a very powerful, eye-opening satire that would illustrate the difference between "all lives!" and black lives.