i admit that i noticed this weeks ago in 4.4.2 and expected that 4.4.3 would correct it, but trying to kill a root owned process in ksysguard/ProcessViewer fails with a msg box indicating insufficient perms (Error4).
This action used to present a kdesu dialog to authorize, but that either has been changed or no longer functions.
Posting here to see if perhaps others have noticed this too, or not and i have a problem elsewhere.