Man there are so many things to complain about as it relates to this loss.
If you are a top 3 defense and want to be the top defense in the NFC you cant both give up that many points and get that physically manhandled by the Cardinals.
Dak's interception was horrible, but sort of was part of a bigger twofold problem where a team that is supposed to have 3 great WRs only had 1 getting consistently open all day and even then it felt like the Cowboys were afraid to actually try and win the game. Red Zone struggles were the highlight of it as the team was afraid to really go for the big play and was generally willing to settle.
The gameplan seemed to be to just sit back and wait for the Cardinals to make a mistake and just play really safe football until that happened. However unlike the NY teams the Cardinals just never made a mistake and by the time they realized they had to actually try and win the game versus not lose the game it was too late. Just horrible play on defense, offense, special teams, and a gameplan that will not work against the top teams in the NFC. If the Cowboys want to have any hope of actually being something they need to make gameplans that involve winning the game and not just hoping the other team loses it because there is a big difference between the two.