If you remove all the PackageKit, gnome-packagekit, etc packages, seapplet no longer works right. 

It puts up a traceback: 

Opps, sealert hit an error!

Traceback (most recent call last):
  File "/usr/bin/sealert", line 1031, in <module>
    run_as_dbus_service(username)
  File "/usr/bin/sealert", line 159, in run_as_dbus_service
    app = SEAlert(user, dbus_service.presentation_manager, watch_setroubleshootd=True)
  File "/usr/bin/sealert", line 658, in __init__
    from setroubleshoot.browser import BrowserApplet
  File "/usr/lib64/python2.6/site-packages/setroubleshoot/browser.py", line 18, in <module>
    import packagekit.frontend as pkf
ImportError: No module named packagekit.frontend

Either it should just not use pk if it's not installed, or there should be a Requires here.