You have to fight universalism in all its forms. Whether you agree with the default behavior or not, if people feel strongly about another option then let them

You have to fight universalism in all its forms. Whether you agree with the default behavior or not, if people feel strongly about another option then let them have it by changing a config setting. Resist the "it must be this way and no other" crowd. Even if the config is as user-unfriendly as about:config, it's there. If you find it impossible to convince management that the slight increase in maintenance is worth the flexibility of both the software and end user usage, expose it anyway for "testing purposes".