The reason is not too important. What could be the result of his "reason" is what I addressed.
I don't really think he is piling it on as much as many people think.. This team is very very good, belichick called off the dogs after the last TD drive that ended in the opening minutes of the forth quarter. he pulled the first team out of most of the games and look at last nights game they ran dives up the middle the whole forth quarter and punted when they could have kicked a long FG
Listen to belichicks explaination of the forth down plays.. He explained that he thinks kicking a fg is tacking it on and just as I said going for it on forth provides two good things..
1. it gives the other team a chance for a stop with no points allowed. All of these forth down plays occurred deep in the other teams half of the field.
2. it is a chance to hone 4th down conversion skills and see what plays work and what don't.. That can be key latter on in a close game..
I really don't remember all this talk about other great offenses of the past. Sure they did not have the defense this team has but what do people want from them to suck on purpose?