^ The way it sounded when he mentioned the term on Skype to me is as if feminism is what those active "feminists" present it as, which is a common misconception; those people are typically saying that women should be above men. I don't know if he thinks women should be below them, but I got the impression he thinks feminism is about putting women above men, when in reality it is just about equality. However, that's a discussion for another area of the board...
I'm not so sure he was frustrated that a female was in charge as much as the way it was presented rubbed him the wrong way. I think he just found it off-putting that Kiara was treated so differently from Kion, despite them both having good qualities and Kion having more leadership experience in canon. That's how I interpreted his post anyway. I also don't think the show is sexist at all, just it is geared towards a male audience in the same way MLP is geared towards girls. Personally, I think it would have made more sense if Simba had told Kiara and Kion to watch over the Pride Lands together. This could have prevented their fighting and helped to keep things smoother while at the same time giving them both much needed experience.