Your aren't wrong in that assumption, but I'd say that, counting only the anime, they've been responsible for the most gayest moment so far in the franchise.
^ In the anime, yes, but I wouldn't say the franchise. Certain moments in the manga and SID still holds the gayest moments in the franchise (we got multiple cheek-kisses and explicit "this girl is attracted to girls" text). Take a look at @lovelivegays on twitter, they have some of those moments.
Edit: Oh, even an almost-kiss (on the lips). Kimino-sensei, calm the fuck down lol
I suppose I just want to know if they ever follow through on anything instead of dropping it after they've built up to a beginning. The "gayest moment" in Love Live that I can think of is probably Riko's confession (or was it?) in Sunshine season 1 and, as I understand it, they pretty much abandoned that come season 2.
I'll try the manga, for now. I've heard others say the same about the non-anime media being more explicit about it. Wish me luck. :P