It's research into social stuff. How AI interacts with things like faces and how that gets biased by a lot of social issues, like racism and existing class stratification related to race (among other things).
These are things that can have "ethical" implications but when you start talking about "Ethical AI," you inadvertently convince people "We are the Good Guys. We will treat everyone in some extremely above board fashion. Our little department is going to single-handedly right all historical racial and gendered wrongs ever in the history of the universe and all the baggage all of society is living with as a consequence."
Good luck with that. It isn't happening and the implied contract there suggesting it will is just going to piss people off and give them unrealistic expectations.
No, I am absolutely not justifying shitty behavior of any sort, not in this case nor in the general case. Don't come at me with ridiculous accusations of that sort.
It's hard to make progress. It's actively counterproductive to inadvertently set expectations that this one department will meet some crazy strict set of ethics at all times every minute of every day in contrast with the entire rest of the world where we duke it out for small gains on a regular basis.