Not strictly speaking a quota, but they do say that they do look over their shortlists for diversity (of some unspecified kind) and that they never had to adjust their lists because of it.

That second part is presented as damning evidence that there's nothing like quotas - but all it really means is that they've fully internalized the requirements, whatever they were.

(It reminds me of Nate Silver's recent statement that Disney had almost never interfered in their editorial policy. Nate also thought that was a defense, even though what it really shows is that Disney was willing to interfere but almost never had reason to - Nate being almost perfectly aligned to their interests already.)

I don't know the exact process by which judges are picked, but it's not surprising that they should be so aligned on diversity and what kinds of diversity, just as they will be fairly aligned on ideas of what makes a book enjoyable or good.

It does not explicitly admit it, and seeing the quotes pulled separately make it harder to infer. But it's pretty clear when read in context that she's admitting that diversity is being factored into the longlists (which of course play a huge role in which books eventually win).

Are these quotas or just nudges? It's hard to say. But I've been in the room when decisions like this were made, by institutions that are legally barred from even considering race. But in reality, race wasn't just part of the decision, it was determinative.