It’s gated by the DAO isn’t it? 
Regarding SNSs, one thing to note is that these run on a priviledged subnet with a whopping 34 nodes. There are practical reasons why SNSs are ‘gated’ and not just anyone should be able to create one on a whim.
I see the IC community growing more discerning over time. Just look at the MinePro
discussion. Also see FuelDAO