I don't have a lot on the content other than I read the article and while I don't think I learned anything new I think it's probably good to have reminders. This article is pretty clearly intended to be read by people who are already receptive to anti-racism and intersectionality, and this seems like a good spot to post it.
I think people get defensive when they read that headline (and don't read any further), if they haven't grappled with the fact the responsibility is on all of us to actively make the world less racist. Just being there isn't enough when the system is built wrong to begin with.
I also wonder if the time for these kinds of articles has passed. Back in 2018 it was, I think, far more common to find people on the left who hadn't grappled with race before, content to say they were color blind but open to changing their view. Today I imagine that group is much smaller, and those remaining are doing so out of ignorance, defensiveness, or explicit racism.