The team went 13-3. I am uncertain what other teams' regular season records have been when their offenses were led by rookie quarterbacks, but teams winning regular season and postseason games with rookie quarterbacks had already been done.
Teams winning or competing in a Super Bowl with a rookie quarterback had never been done, has never been done since 2016, and is extremely likely to never be done. There was a zero percent change of this franchise winning or playing in Super LI the moments both Tony Romo and Kellen Moore fell to injury and the permanent decision was made to stay with a rookie quarterback. The possibility may have also been near zero if Romo had not gotten injured, but that near impossibility was greater than none.
There will be disagreements, but Jerry Jones' decision to fully commit to a new franchise quarterback by late October was the best long-term outcome in regard to positional change. Romo's era was finished in his opinion. Jones' QB acquisition history had long established he would stick with his decision for years--an observation which several members here had the foresight of mentioning repeatedly.
It is 2026. Veteran quarterbacks help their teams compete in and win Super Bowls. Dallas has an 11-year veteran at the position. Here's hoping he and his teammates can make a successful run at Super Bowl LXI.