That list of plugins is not an all-encompassing list of plugins that conflict with Jetpack; it's a list of plugins that, if activate, will cause Jetpack to not include any OpenGraph tags. From the Fast Secure Contact Form author:
If they did so, it could actually cause their own 'Publicize and 'Sharing' modules to not have any open graph tags since my plugin does not add any.
We're working on a fix for the redirection problem with Fast Secure Contact Form.