From the Jackdonville game to the Detroit game, Dallas went 7-1, so yes they can.
I guess there is a belief that teams can just throw a switch and go from not even being able to win a single game to running the table.
Sorry, that is not how things work for the most part. Teams can stumble, bumble, then right themselves and get hot. Had they even won a game, there is more of a chance for righting the ship. It is not about the numerical value of the games, it is how it is being asked to win those games and in the context of how everything else works. Last year was a good team with momentum and confidence that went 7-1. Not a team like this one, possibly doubting themselves and then also needing a bunch of other teams to continue to struggle.
It is nearly unheard of for a team to go from flat on their face losing six consecutive games to running the table into the playoffs. It just is a very illogical assumption to make, or especially, count on. They can sure try and I hope they are going to, but to even expect it as likely is just plain
The fact that it has happened once in the modern era and in a 14 game season at that (plus having two legends in Paul Brown and Bill Walsh as coaches) should basically provide the best gauge whether the notion is reasonable or not.