Referee mistakes happen in real football, shouldn't they also happen in a simulation of real football?
I'm not sure if that is the case here without seeing it myself, it could well be a bug but just offering an alternative viewpoint. If it does still concern you, report the bug here and put the examples on the FTP...
http://community.sigames.com/forumdisplay.php/296-Match-Engine-3D-and-Team-Talks