Exactly.
Christopher, I know you have mentioned this desire for Kara to be gay before, but that's not going to happen with a longstanding member of the Superman family, and all that brand means to DC/WB. Over the decades, the only characters were said to be gay were usually lower B or C-list characters such as the Alan Scott GL the 2nd Batwoman or Iceman. Comic companies (and adaptations) feel they're playing it safe by changing characters of that level, but you are unlikely to see flagship characters such as Superman, Batman, Captain America, or Spider-Man go in that direction. Supergirl is not an "A" list character, but she's been popular enough with various creators to use her in a film, and live and animated TV series, so that higher profile status to the general audience--along with carrying that "S" shield brand--means it is less likely DC/WB would do anything that might cause controversy or a radical audience perception change. Like it or not, it would, since SG is not only promoted as role model for females, but the series is not shy selling her as the "girl next door" that a part of the male audience finds appealing / approachable, or a dream fulfillment.