We do have code to check that the status is not the same so that we do not duplicate the post. However, if JFBConnect imports the status, the user then makes an update in JomSocial and authenticates again, JFBConnect will import the FB status again.
I just tested your settings on my test site and it's working as expected. However, when I log into your site, my status is actually not imported at all from Facebook. Did you temporarily disable the setting?
-Melissa