Oh yes, the racism of film stock has been an open secret for years. Yet I think they missed the lede here. Primarily (as shown in the brief Amy Schumer snippet) it's light meters which are racist.
But that doesn't excuse Kodak at all, especially because of the iterative nature of what is labeled "normal" and, you know, white people.
The thing in the Vox video which talks about reds -- I think what they really mean is that the low-density resolution of reds were not so great in negative stocks. Or something like that. Maybe it's in release prints? Hmm... Yes, I'm going to guess that's what they mean. Because, as we all know, humans are all the same color, just with different amounts of saturation.