I think what they're getting at is that a male character given a similar role to Kairi would have still ended up with more agency and been allowed to contribute more to the plot.If that was the case he wouldn't be a male Kairi, he would be a completely different character. so no.
Let's compare Ven and Kairi waking up after regaining their hearts and Sora and Kairi's kidnappings.
When Ven woke up from his sleep, Aqua had been fighting to protect him, but suddenly needed to take an L so used her body as a shield to protect him. After waking up he got to swoop in and save her, scaring Vanitas away.
On the other hand when Kairi woke up, Sora had fought of Ansem possessed Riku and sacrificed himself to fade away before she could reach him. She then had to flee because she couldn't fight back when Ansem appeared and then as she's fleeing was able to restore Sora to human after he turned into a heartless.
Sure you can make the point that Ven is a fighter and Kairi wasn't therefore what they got to do after they woke up varied. However the characters being that way was a choice. Kairi could have gotten the keyblade and gained the experience while inside of Sora, but they chose for her not to have and need to flee.
Alright on to the kidnapping. With Kairi she's usually just grabbed and yanked away, no real chances to fight back.
Sora on the other hand was lured into a trap and exhausted via combat, then whisked away once he fell asleep.
So in the boys case they still shown in a strong and capable light where as Kairi is show cased as powerless and helpless.