Growing up around strong women like my grandmother, mother, family friends, and probably my latent gay boy self showing itself, I didn't care much for weak super-hero women.
Marvel's teams in the 60s and early 70s featured women as the weakest links (Invisible Girl, Marvel Girl, the Wasp), but DC's didn't (Wonder Woman, Wondergirl, Elasti-Girl)—except for the Legion.
The only powerhouse, Supergirl, was "retired" off leaving the weaker, defense, peripheral members like Saturn Girl, Phantom Girl, and Shrinking Violet.
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But the worst offender of all was Dream Girl, a precognitive who couldn't use her powers on command, and often fainted when she had powerful or upsetting visions. She went through extensive training with Karate Kid, so she could fight, and they made her willful, and could use her flight ring like no other Legionnaire. But these weren't super, so you were left with a basically an average pretty girl who couldn't help, really, unless she randomly had a useful vision.
By contrast, Night Girl was rejected as an applicant. Her dad had infused her with super-strength, but since she was from a planet without a sun, her powers faded in day light or bright light. So, a girl, who for 12 hours a day (night shift) or in deep space (where a lot of Legion tales took place) who would reliably be among the most powerful members, male or female... Rejected! But a girl who can't use use powers on command, and faints when she does... Accepted! To say nothing about how Invisible Kid invented the serum to give himself powers, Saturn Girl invented a serum to keep Mon-El safe from lead (which Brainiac 5 perfected), and Supergirl invented cancellite to negate the powers of Durlans. Couldn't these whiz-kids have perfected things for Night Girl, giving her at least some super-strength during the day? The did cartwheels for Mon-El, why not her?