It's definitely an interesting format, but I'm kinda looking forward to it as opposed to a traditional interview format. RVC had something similar and it seemed much more about how you interact with your teammates, what type of thinking you use, what type of ideas you propose and how you propose them, etc.. I don't think (at least??) there's a super right or wrong answer other than cutting people off without apologizing or being combative, it seemed much more along the lines of getting to know how you think and how you work in a team of new people. In my RVC interview I accidentally cut someone off (felt horrible) so I apologized and said they can continue and I still got in so maybe that's not the end of the world?