In the original, we had Officier Styles would was the gung ho (lets kill them) voice in the room, but he had family that died in the first romulan war and was a very "bigoted" individual himself. They kept that same voice through Ortegas in the new series, but without any of the backstory. I had felt that Ortegas' hostility was a bit much beyond what we normally had seen from the character, but now comparing it to the original show it felt even more.
That said, considering its like 9 years in the future for ortegas, that could just be how she is now, so its not a major plot issue.