It’s a stereotypical defensive head coach mindset. Never take risks or have an aggressive mindset offensively that could end up putting your defense in a bad situation. He was scared. Or only did he say he doesn’t trust the offense to get a yard, but he doesn’t trust his defense to stop them if they don’t make it.
In my opinion, what made Belicheck so good was he was a great defensive mind that let Brady be aggressive and seal games over and over. With rules today it’s so hard on defenses to finish games. Offenses with any time left and a chance to win generally do it. We got Taysom Hill and Alvin freakin Kamara who both got yards at will today, and we punt.