The Dallas Cowboys lost in Week 1. Nobody is out here saying that the Cowboys are anything except for 0-1, but after having over a week to digest on what happened down in Tampa Bay (while processing everything that has been happening in Dallas simultaneously) there is no denying it. The Cowboys were very much in that game and could have very easily won it.
You can boil down why the Cowboys lost the game to a few moments. Some people would look to the short missed field goal and extra point from Greg Zuerlein. Others might talk about the quick Antonio Brown touchdown at the end of the first half.