Kierkegaard's alternative was an armed rebellion. Are you seriously advocating for civil war, and dismissing all peaceful methods of achieving change?
That gets to the heart of what's wrong with the concept as it is used by the 4chan crowd these days: The success of democracy is exactly the possibility to effect change without shouldering grave personal risks. Trying to reframe this accomplishment as ineffective, weak, or lazy runs the danger of provoking exactly the sort of dramatic, self-sacrificing gestures that have been in the news recently.
In the specific case, maybe quitting would be slightly less dramatic but more forceful form of protest. But it's quite obvious that exists a gray area where it's perfectly legitimate to try to change an organisation, while still being convinced of its overall benefit. Recruitment & retainment are also huge factors for Google's future prospect, making a walk-out with the implied threat of quitting, an effective tool.