OK, first off, she starts with one linked piece that's talking about the utter lack of creator diversity in All White-All Male ANAD Marvel and then jumps to a second piece that is quoted but not linked that's talks about diversity issues more broadly. This includes talking about the author's belief that one thing that is holding back comics is the lack of creator diversity. It also mentions Strange Fruit as an example of a misstep caused, in part, due to what I'll personally phrase as "white people trying to write a black story without the experience or understanding or frame to do so, resulting in, essentially, white people writing from a white perspective about black people".
I haven't read Strange Fruit either, but, like I mentioned above, it seemed like a big part of the issue people have taken with it was that, despite picking such a racially charged time and place as the setting, the creative team didn't seem prepared or able to handle it with the care and understanding it needed. Ostrander seems to, in part, at least be trying to say that you need to be able to find places to relate and understand who you're writing, but it still feels a bit dismissive the way he says everything and seems to be tangential to the discussion at hand.
Sure. I agree with all this pretty much 100%. It's just that, like I said above, I'm not sure Ostrander's statement really deals with the issue at hand.