Send them off!

I'm hoping to find some time to write up some thoughts on the back of last week's Asian Gaming Conference which I was at in Macau, but in the interim, I saw this over the weekend, and I have a question on the back of it: Last Sunday’s Ryman Premier League game between Thurrock and Wingate & Finchley was abandoned in the 85th minute after no fewer than five of Wingate’s players were sent off. The dismissals – resulting from dangerous tackles, retaliation, kicking the ball away and dissent – made the game the first in the league’s 108-year history to be called off in such a manner: teams are required to field a minimum of seven players. But Wingate’s players may have the last laugh. Although the match was interrupted with Thurrock leading 1-0, rules mean it is likely to be replayed in full. My question is this: if a match has to be replayed when it is abandoned in this fashion, what is to stop a team which has had a shocker and is losing a majorly important match, from just having lots of players sent off in order to have another site at the cherry? So, some team goes 3-nil down at home in a Champions' League first leg; they get five players sent off; and they have another go, starting at 0-0? I'm amazed it's never happened...