There is no good reason for Jetpack not to simply offer a "auto-activate new modules" toggle in the settings. Default it to on, let anti-activationists unset it and forget it. As pointed out in the article, there are filters to do this, and third-party plugins are available that code could be copied from (with permission, obviously) if the Jetpack team is too busy to do it themselves. "Designing for the majority" is no excuse when giving people a CHOICE is so damn easy.