Her mother, Heather Kester, said Friday that her daughter was passionate about coming out in church to be a voice and example for other LGBT children who struggle for acceptance within The Church of Jesus Christ of Latter-day Saints. She asked that Savannah's full name be withheld to protect her privacy.
No, I'm not putting her down. She strikes me as rather brave and I don't see any reason to condemn her for pressing her church on the subject, but yes, it was a publicity stunt. A couple of other quotes from the story:
The video, which Kester says was taken by a friend of Savannah who came to support her ...
[The congregation's bishop] called problematic the unauthorized recording and the "disruptive demonstration" by a group of non-Mormon adults who were there.
IMO, making an announcement of that sort at a public function, having it recorded and putting the video out for public consumption, and bringing in supporters to use the announcement as the cue for a public demonstration puts one well across the line at which one retains any reasonable expectation of privacy.