That nonsense at the end of the game was not the best move, and quite a blunder as mentioned. Know the rules, and be aware of the clock at the end of the game. People can ignore the criticism of clock management all they want, but unless they address it in private, these things will continue to occur.
IMO, and as mentioned, had they had enough time for the play, there was no guarantee Dallas was going to win the game. That nonsense would have been better suited to set up a FG attempt.
Say what you will about Tony Romo, but IIRC, he made mention of the Cowboys maybe going deep in advance. Barring a game-winning pick, they either take the lead or the ball is batted down, but with Dallas having a second shot at a "Hail Mary" attempt. I agree there, but at the end of the day, throw to the endzone and go from there. That, and/or don't commit defensive holding penalties with precious TOs if/when you get the ball back for one more shot.
Man, we probably are not talking about this if Nick Bosa doesn't go down. Hope he's okay going forward