He was a black person promoted to a position of prestige over white people, possibly motivated by an inclusion policy, it's catnip to the gutter press and it's a story tailor made to go viral in this day and age with the story amplified by places like twatter and farcebook.

It's a textbook example of inherent racial bias in the system where even the slightest mistake by a person of colour, or a woman, or a disabled person is leapt upon but the countless examples of white men doing the same thing are glossed over, ignored and pass by without comment.

Given permission, they would hunt us all down for sport

https://en.wikipedia.org/wiki/Infantilization

I think there were other institutions that he had been associated with that also cleared him. Cambridge will likely only look at work he's done while with them, and defer to Liverpool or others for work he did elsewhere.