That's horrific on a number of levels. Even ignoring the language itself (no one surely can defend ‘the blacks’ used like that in that context) her attitude is one that I’ve sadly come across a lot amongst academics of her age. These are people who, theoretically, ascribe to the idea that they are progressives, and that they are in favour of diversity and inclusivity, but when push comes to shove will fight tooth and nail to preserve the status quo on spurious grounds like, as we see in this video, ‘unfortunately it’s the white students who are just better’.
Black students who excel, perhaps the ones lucky enough to have received better schooling, are dismissed as exceptions, and black students who aren’t perhaps as ready are dismissed as thickos who shouldn’t be there and whose initial struggles in her class prove that they’re a bit dumb. It’s a racist trope being used to prop up systematic racism.
And that’s before we even get in to some of the other issues that we can guess at here. This woman’s attitude is conservative, so you have to wonder at what her teaching pedagogy is. Is she adopting innovative, inclusive pedagogy that recognises the diversity of backgrounds from which her students have been drawn from, or does she have a rigid fixed idea of what her students should be, and teaches in a way that only benefits them, thus leaving behind learners that don’t initially and immediately conform to her expectations?
I don’t know anything about her beyond that video, but that video alone makes me think she’s a bad educator who should not be in front of students without some significant training (which of course is training that people of her seniority in academia outright fight against having to do because they think there’s nothing for them to learn).