You can the option's there in the UI, but as you say, there may be dependency issues. You say "suppose", are you purely guessing that there'd be issues, or does you assertion have a basis in fact/knowledge?
# dpkg --list|grep facebook|awk '{print $2}' | xargs apt-cache rdepends libqt-facebook Reverse Depends: facebook-meego facebookqml facebook-meego facebookqml facebookqml facebook-meego facebook Reverse Depends: mp-harmattan-001-pr mp-harmattan-001-pr facebook-meego Reverse Depends: facebookqml facebookqml facebookqml l10n-app-facebook Reverse Depends: mp-harmattan-001-pr mp-harmattan-001-pr facebookqml Reverse Depends: facebook facebook l10n-app-facebookshare Reverse Depends: mp-harmattan-001-pr mp-harmattan-001-pr account-plugin-facebook Reverse Depends: facebook-meego contacts facebookqml mp-harmattan-001-pr webupload-service-facebook contactsd facebook-meego facebookqml mp-harmattan-001-pr facebookqml contacts facebook-meego contactsd webupload-service-facebook signon-facebookplugin Reverse Depends: evernote-sharing si-helper mp-harmattan-001-pr libqt-facebook account-plugin-facebook evernote-sharing libqt-facebook mp-harmattan-001-pr libqt-facebook si-helper account-plugin-facebook webupload-service-facebook Reverse Depends: mp-harmattan-001-pr mp-harmattan-001-pr
account-plugin-facebook contacts contactsd evernote-sharing facebook facebook-meego facebookqml libqt-facebook mp-harmattan-001-pr si-helper webupload-service-facebook