90% of Mozilla's revenue comes from Google/Alphabet which can be loosely translated as "Mitchell Baker's salary is paid in 90% by Google" and "Mitchell Baker (indirectly) works for Google".

Mozilla is not a "weird neighbor" but a controlled opposition and its CEO's salary would suffer from breaking this unhealthy relationship or stepping on Google's toes. I'm fairly certain that a lot of Mozilla's developers and users don't have pro-Google viewpoints but it's cash that matters here, not viewpoints.