I think this is a hugely important topic given current events. On the subject of toxic guilt, I see black community leaders asking white people to take a backseat, which to me makes a lot of sense. They've been putting in the work to create change for so long, and we are just newcomers to their fight. We are here to support, but this is not our time to lead and make decisions for the movements occurring. This is our time to listen. If we steamroll over them, we ruin what they've worked so hard on as we make it about ourselves. Yes, we want to be active participants to make up for when we didn't know better, but it's counterintuitive to cause harm to movements that have existed far longer than we've known about them.
I also think this video segment reiterates why this training is facilitated by a white person. The burden of the work ought to fall on us white people! We don't need to put even more burden on black people to try to explain to their white acquaintances. We have the resources, we can do the work. I think sometimes people ask not to gain understanding, but to feel less guilty - if they can hear that they're good from one black person, then they must be a good person and don't have to change.