Freedom Ring lasted two or three issues in a book that was promptly canceled due to a lack of sales. If your primary exposure to comic book communities is S_D, then you may have an inflated idea of his impact.
Billy and Teddy's relationship is treated almost identically to Kate and Eli's, except theirs is more stable. Generally, their panel time is more concerned with actual plot or superheroics. They're also teenagers who don't live with one another, so you can't show them together in bed as often as you'd see Scott and Emma, even if it was desirable to do so.
It's also probably useful to note here that the only reason that either Batwoman or Question mk. II are as high-profile as they are is Greg Rucka, he's put up with a lot of controversy to get them that far, and it took him, what, three years after the end of 52? Were it not for Rucka, the highest-profile gay character in DC's superhero line would be Kate Spencer's assistant.