White-on-white educators, such as Tim White, Robin DiAngelo, Peggy McIntosh, etc. definitely can do a lot of good. But as people who are white, they're ultimately speaking about a subject that they have no personal experience with, and are passing on information second-hand, so they're always going to have blind spots.
Also, it's a little ironic that a white person raises themselves up as an authority on racism. Shouldn't they be redirecting others to POC content creators who can speak on anti-racism efforts with more authority? (certainly white educators can speak to how their personal anti-racism journeys have gone, but they seem to be going much further than that)
Other articles that cover a similar topic:
Other articles that cover a nearby-but-slightly-different topic: