>There's definitely a ton of male gaze, much like the miniskirts in TOS.
"I was wearing them on the street. What's wrong with wearing them on the air? I wore 'em on airplanes. It was the era of the miniskirt. Everybody wore miniskirts" —Nichelle Nichols, 2001 <https://web.archive.org/web/20011115192358/https://www.bbc.c...>
Arguably, because they were on a naval(? not military because Starfleet isn’t, but…) vessel in professional roles. If women had been in the air force in the 60s I doubt they’d have been in mini skirts.
Not miniskirts but:
https://myairmanmuseum.org/wp-content/uploads/2022/10/Nellis...
Anyway in the 1960s the navy was making movies like this:
https://youtu.be/rUKcHe0-m_I?t=234