BxB is officially allowed here. BL games have male MCs but in general they fall under the "female-oriented" umbrella, which are games for girls (in Japanese the term is 女性向け). Otome games are also female-oriented.
Not saying girls can't/don't play yuri but...it's kind of an "ehhh" area. Usually yuri games are aimed at the male audience and consist of fan-service that guys enjoy.
So yuri is really different from otome/BL because the target audience is different.
ebi-hime also has other yuri games like Salome's Kiss or The Fairy's Secret, those got thrown into the Hentai and Misc sections. Other yuri games such as 嘘から始まる恋の夏 and SaDistic BlooD got the same treatment.
Oof I didn't mean to ramble. Anyway maybe someday a yuri tag will officially get added to the forum to avoid confusion...