This is a bad argument. Established things are established. “If you don’t like what the president of your country is doing, just run for the office yourself.”
Maybe "many people" remember what's been going on at Mozilla over the past decade. After all, Mozilla went there before and set the example of downward slope: first donations then partnerships, first opt-in then opt-out then automatically installed addons, first "contribute to the browser" then to sideprojects/non-technical causes, etc.
A similar case could be made for Wikimedia.