They aren't must wins nor claim to be. That's not the purpose of that one chart. They are important relative speaking and I have no idea, as I stated, how they determine quantitative number for it. It's not even important whom thinks who is most important AFAIC. The games will play out but it's fun to look.
My use of "must win" was to avoid using "important" over and over.
A Cowboys win or loss affects all the contending teams for the NFCE as well as those conference teams fighting for seedings. Many more teams involved.
Actually, this is wrong. It's not a Cowboys win or loss that has "importance" but rather a Vikings' win or loss that does. Ignoring the Vikings side/impact in the playoff race for a moment, no team out there accomplishes, clinches, etc. anything from a Cowboys win or loss. The Giants are helped a little by a Cowboys loss, but if they lose the Cowboys next week, the Vikings game basically means little to them as they will more likely be fighting for the top wild card spot.
And that's my point. When assigning importance ratings/values to something, you are saying that in this snapshot of time, that "thing" is important right now. The Cowboys-Vikings game has no immediate impact on any of the current (aka: NOW) teams in the playoff picture. If the Giants/Commanders win out, they will take both of the wild card spots and possibly the division. If either wins the division, the Cowboys would end up with a wild card spot. A Vikings win this week gains them nothing, and only a loss really affects them or anyone else.
Cowboys-vs-Vikings
- Cowboys win? They are still 2 or more games up on the Giants for the division and the #1 NFC seed.
- Cowboys lose? They are still 1 or more games up on the Giants for the division and the #1 NFC seed.
- Vikings win? They are still outside-looking-in for a wild card spot without help from other teams.
- Vikings lose? They are still outside-looking-in for a wild card spot without help from other teams.
Giants-vs-Steelers
- Giants win? They are still 1-2 games behind the Cowboys for the division and the #5 NFC seed.
- Giants lose? They are still 2-3 games behind the Cowboys for the division and the #5 NFC seed.
- Steelers win? They are still tied with the Ravens but in second place in the division due to losing to the Ravens earlier this season and they are not in the playoffs; or they are 1 game ahead of the Ravens and the #4 AFC seed.
- Steelers lose? They are either 1 game behind the Ravens or tied with the Ravens for the division and not in the playoffs due to losing to the Ravens earlier this season.
That's my point about statistics. It is very obvious whoever designed that site really has no clue about statistics and instead simply created a random importance formula based on something simple like, "number of teams affected eventually by win/loss" and that became the basis of their ratings, which I place on the same level as assigning importance ratings based on team colors.
You cannot calculate an importance rating for a single game using possible future results in that equation. Once you do that, you are not assigning an importance rating for a single game (now), but rather a series of games (time).
In 3-4 weeks, the Vikings game may be very important to the Cowboys. However, right now, this single game has very little importance on the rest of their season.