Well, in the Super Bowl Brady DID go deep. But it was easily defensed by 12 players. About 10 seconds ticked off. Go back and look at it. It was the second to last play of the game. After that play they HAD to throw a hail mary because that's all the time they had left.
Also, if you jump offsides and the play continues and it is incomplete but they take the 5 yards, they DO NOT put time back on the clock.
Really, there is almost no downside to a defensive player jumping offsides on a rushed last minute drive. Time ticks off and 5 yards means squat.
I'm not saying you do it all the time. But in my opinion it may have cost the Patriots the Super Bowl. So, again IMHO, it was a huge play.
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