No it doesn’t. There is no threat to google given that the majority voting control is held amongst the founders. Same for Facebook. There is no risk of a hostile takeover or being voted out by public shareholders.
Shareholders have plenty of ways of impacting corporate direction that fall far short of hostile takeovers. E.g. lawsuits; the very fact that a public company has to provide more information about its finances. There's a reason Ruth Porat was brought on after IPO and not before.