Right and the most reasonable way you could think of is still completely impractical. That's the point.
The existing system does work. Your expectations for global are simply too high. People need to not get butt hurt because they are "unjustly" banned from global. It's only for 24 hours. It doesn't affect core game play. There is also no penalty.
The choice is really to eliminate global chat entirely or deal with the imperfections of the current system. When faced with the alternative, I'd rather they keep the imperfect system they have now of player based moderation.



