[1] https://www.cnbc.com/2017/08/01/snapchat-excluded-from-sp-50...
It turns out that there are indeed share classes of these companies with no voting rights (GOOG, class C) but I haven't found an example of a company that doesn't have some voting shares in non-insider hands.
It's still shitty that the S&P indices barred SNAP while turning a blind eye to the existing inequities. I'm perfectly okay with them barring new split share listings but at least begin to apply it to others that benefit from the lack of corporate governance.
[1] https://berkshirehathaway.com/compab.pdf#:~:text=Berkshire%2....