Not such a good idea, eh?
With 3 minutes to go, looked like NE would certainly lose, much less cover a spread. San Diego, another win closer than it 'should have been'.
Within reason, I usually subscribe to the notion of 'any given Sunday'. And with regards to sports betting (whether it be 1:1 over/under, or win/lose odds), something else to keep in mind... Not sure how much water this theory holds, but IMHO betting on a particular team is often motivated by wishful thinking. So the larger the 'fan base', the more the odds (or wideness of the spread) will be skewed in favor of that team. So I'd go with the underdog in those cases.