Correct, sometimes you do win close games. When you are winning every close game, it's an anomaly. Compare the point differential of the Patriots, Broncos, Rams, Seahawks, Packers, Colts and Bears. One stands out very clearly.
The Bears are winning games by 1 on fluke plays, winning games where they throw for 100 yards on 38 passes. And they are not winning a game or two like that, it's every game. Someone does this every year and it is never sustainable. They get badly exposed when it counts.
Their legit offense? Williams is completing less than 60% of his passes. That's really bad. They can run the ball, I'll give them that.
Are the Bears are a terrible team? No, but they are in a class with the Tampas and the Pittsburghs, not the ruling elite. They should be about 6-6, and their reckoning is coming. You can dig back a bit, I liked the Bears this year. Thought they did a lot to make the team better, they have a competent FO, and thought they were a good sleeper pick to be in the playoffs.
But 9-3 is a fluke, the stats suggest it's a fluke, and it will proven as such.