Before NYU changed the topic of their supplemental essay, Gallatin used to look closely at the “why nyu” essay to see how the student really planned to take advantage of the interdisciplinary nature of the school to approach their academics (and, I suspect, to try ensure the student was not just trying to back-door into CAS). So it was always hard to chance because the essay was so important. From your first post, despite the change in essay topic you seem to have still managed to convey that interest in interdisciplinary research so hopefully that will be an asset. Your stats are a little low, but your ECs sound great. It’s a reach, but I personally think you have a decent chance. Btw, my daughter graduated from Gallatin last year (transferred in from LS core after sophomore year) and she loved it. Wishing you best of luck!