He doesn't want console to have superadmin access for ulx.
Issue is though, if someone's getting access to your console, they're going to have access to change the cvar to disable the feature you're asking for.
ULX is the least of your worries at that point.
It might slow down the script kiddie type of exploiter who doesn't know better, but most gmod exploiters are a bit quicker than script kiddies.