I think you're right but certainly in that scenario, against a team with Mack & Irvin coming off the edges I'd rather have a quiet Foxboro crowd letting Tom run the offense than a frenzied Oakland crowd out for blood against the dynasty partly launched by the tuck rule call all those years ago.
Denver '15 was a far better defensive team than Oakland '16 minus Carr, but this is still the NFL and they've got some good players that can cause problems. They have some talented WRs and would be starting a QB that the Pats haven't seen before. I think the defense has been 'good enough' from the start and has moved to 'really good' - but for all the kvetching all year over how good some 'trash QBs' have been able to move the ball, I am a little surprised to see so many so completely uber-confident in an easy win in a west coast road game against this team, Carr's injury notwithstanding.
Fans have the luxury of looking past presumably weaker opponents, hopefully the Pats themselves wouldn't fall into that trap lest we get a 2010 Jets game repeat. Can a playoff game be a 'trap game'? They shouldn't have lost that game either, but they did. Everyone should be careful what they wish for.