Well, for one thing, there have been many articles about the David Parker situation. This is not strictly a news report, it is an editorial, and the author was not attempting to write a historical rundown of everything that happened but is rather giving a summary, bringing it into a larger political perspective.
She can correct me if I'm wrong, but I think she's using the "liberation theology" not as strictly as in the Catholic Marxist revolutionaries, but in the sense of "relgious" people promoting leftist causes in general. Such supposedly religious homosexuality promoters are using their position to promote pet leftist causes, seeking "liberation" from - well, from the 10 Commandments, for one thing.
She mentions the religious spokespeople because they have been mentioned prominently in news articles. It is noteworthy that people who are supposedly representing God or trying to teach the message of God are promoting that which God very clearly states is abominable, and not just in the Old and New Testament, but in every monotheist religion in the world. I think that quite noteworthy.
And your complaint that she didn't tell you each detail of the entire story - this is an editorial, not a complete historical account of the entire situation. I think that's pretty clear.
You hit every note to perfection!