That's total garbage that he didn't know the camera and lip readers would tune in. They show him on camera every week. His dad has talked about his blue collar shirt he wears for good luck because the media asks about it since they see it every week. The Krafts aren't idiots. They know they're on camera.
It's not a bad thing to make him uncomfortable about bad play calls. It's bad to do it publicly. How does that help. If the Krafts have a problem with the playcalling, talk to Mayo and/or AVP. Do it in an environment where he can be candid and honest without having to play the game of not wanting to publicly shame the players. All that does is create potential conflict and dissention. There's absolutely no benefit to forcing him to answer that question in a public setting and anyone with even the slightest clue of how to run an organization would know that.