I think the absence of the book is purely symptomatic, even symbolic, of far deeper and larger problems with the institution.
Their commitments to freedom of speech, belief, thought and expression all appear to be conditional on the political position of said speech/thought/belief/expression.
This is politically motivated state censorship.
Even worse, they specifically talk about inequalities, and the risks of censorship, and the need for plurality of views and representation, inclusion, etc. While overtly excluding certain books because they don't like the politics.
And that is pure doublespeak.