As I understand it - GSA is a group of LGBT+s and "Straight Allies" get together as a support group for those who might be out already, questioning their place on a sexual spectrum, straight kids of gay parents etc. Whether that support is for those who are bullied (at school or at home) or figuring out how to come out or depending on the ages of those in the group, sexual health that might not necessarily be taught in the regular curriculum (another contentious topic apparently). I hate to use the term "safe space" as it is usually just turns into a reason for social conservatives ironically rage that their way of life is threatened (it's not). But it is essentially a safe space for those who might not get the opportunity to have this sort of discourse, particularly at home. That's why it's problematic for the UCP to take a position of notifying parents if their kids join. Which, is actually pretty ridiculous if you think about it. I doubt there are any other clubs which kids might join and notify the parents for.. Chess club, math club, travel, dance, second language, whatever...
I agree that this has taken up too much time in the media and legislature, but it really really highlights the homophobic history of Jason Kenney and some of the conservatives in this province. Kenney has a long history of homophobic stances, as well as racism and xenophobia, and spreading false facts. Unfortunately, government and governing is more than just about the economy. Social issues are just as important for a freer society, and shouldn't take the back burner just because there's an economic slump.