Me, too.
I thought Spock referring to Nomad's comment that Uhura was a mass of conflicting emotions with simply, she is a woman, was the worst sexist thing in the whole series. But then I really don't like that episode anyway, which is a rare thing, I love so many of them.
Both times, all 2, that Uhura said she was frightened were at very frightening times and she just seemed open enough to admit it. What bothered me about Arena, one of my favorites, is that Uhura screams ridiculously when Kirk disappears and over reacts with her hand up upon seeing the Gorn. I blame either the script or director because just the previous episode when Trelane steals Kirk, she doesn't scream, she reacts appropriately. But I'm probably the last person that should be discussing this subject because I don't go looking to see if something has some ism in it, I just like to accept it as is and enjoy it if it's good. Sorry if I ranted.