Check out anything in the rest of the episode. Perhaps the segment immediately afterwards with the mannequins (22 minutes in, episode 9).
I just did, and hey, it looks like I was right! While this show maybe isn't aimed at
young children, it's still TV-14.
14 year-olds are in middle school. Bill also says in that mannequin segment, "How about attraction? Some people argue the natural thing is to only be attracted to the opposite sex.
But in practice, it ain't so simple kids!"
So yeah, I stand by my original comment, because at least some elements of this show are clearly aimed at a young demographic. Encouraging hormonal eighth-graders that sex is some inconsequential act they should engage in whenever they want is colossally stupid. There are far more factors that should go into a decision like that other than just "is this morally okay?" Especially at that age!
How many sexually-active kids from when you were in middle school (or even high school) handled their intimate relationships well? I'm guessing the number is right around 0%.
EDIT: One more time, just to clarify, I absolutely think youngsters should be taught self-acceptance if they fall outside the traditional norm of sexuality. Nobody should be made fun of or feel lesser about themselves because they have uncommon attractions.