This was going to be a difficult game to win regardless. KC is playing great and they're the class of the NFL right now. But still, Cam gave them a chance. Now it will take a near miracle.
The bigger issue, from a Patriots football standpoint, is next week when they play Denver. That's a game they probably would have won relatively handily, but with Hoyer at the helm, it's suddenly a toss up, or at least a much tougher task. That's a game they simply cannot lose. If Cam is out for that game as well....ugh.
And I really wonder about Stidham v. Hoyer. It seemed that, before they signed Cam, the Patriots were going to roll with Stidham. So why did he disappear? My theory is that if they had to go with Stidham, they would have been adopting a perspective of "well, we know it will be rough, but at least we are turning the page to the future". But with Cam, suddenly the goal of the season changed into "hey we've got a chance". And when that changed, they then thought that Hoyer gave them a better backup option than Stidham.
Still....I've not much confidence in the offense with Brian Hoyer running things. Get well soon, Cam!