>>1190265It has an exclusionary view of heterosexuality, and is blatantly misleading. If you use the same standard for homosexuality, then only 4-5% of the population would be gay, and everyone else is either heterosexual, or bisexual.
The majority of "non-heterosexual" teenagers would be primarily heterosexual, but would (purportedly) engage in homosexual acts on occasion, that doesn't even necessarily mean sex. Kissing and fondling would count as well.