>To simplify, let's say I own 10% of Google, what this stock split does is leave me with a 10% ownership stake in Google, but only in possession of 5% of the voting rights in a board election - effectively taking away half of my oversight of the company by fiat.
That doesn't appear to be the case at all. If you currently own 10% of the voting shares of Google, on the day of the stock split, you will still own 10% of the voting shares -- the same shares, in fact. But you'll also now own ~10% of a new class of non-voting shares. Heck, if you wanted to, you could sell your new non-voting shares and use the money to buy voting shares, and end up with an even larger percentage of the voting shares than you had before.
It's just that you can't -- and couldn't have even before this -- acquire a majority of the votes, because they remain in the hands of the founders, who aren't selling.