Regardless of all the confusion. The tripping penalty which would have essentially ended the game. The misreporting of the eligible player, no matter if it were a mistake, or a purposeful action to confuse the Cowboys. The not using the time left during the time out by the refs to correct the eligibility issue. Two plays that followed which were stifled by the Cowboys.
The bottom line is this. Detroit should have ceded the mistake and kicked the field goal to tie the game and take it to overtime. All the whining by the talking heads, Lion's team, and Lion's fans doesn't change the fact the real mistake was not getting it to over time.
With the ease it appears to have happened that the Lions traveled the field to get onto position to score, the best shot would have been to take the extra point and then go and win the game.
They chose poorly and got what that decision - decisions wrought.