Define celebrate. I mean, a loss yesterday would have perhaps been the most embarrassing in Cowboys history, but yeah, it was a fun game. Dallas had 600+ yards of offense, which is rare. Early in the 3rd quarter, the Giants had 17 yards of offense and 1 first down, which is even more rare. New York was essentially playing without a quarterback.
However, yesterday doesn't matter if Dallas doesn't win ALL of the next three games to get to 10-3. After that, it's Philly, Buffalo, Miami, and Detroit. Dallas is already looking pretty much like a wild card team thanks to the Arizona debacle and the loss to Philly. Dallas desperately needs some home games in the playoffs; these aren't the road warrior Texas Rangers.
The Cowboys have to change their playoff narrative of crapping the bed in the divisional round every time. Until then, it's just same ole rinse and repeat, which is beyond tiresome.