I'm not a fan of the "what if" questions. Speculation of the hypothetical circumstances is kin to tabloid gossip.
If Romo did what Wilson did then he wouldn't be Romo. QBs distinguish themselves by what they do or don't do on a field of play. Peyton Manning is known for his ability to diagnose a defense and counter it on the fly, Drew Brees is known for his pin point accuracy, my point is these athletes don't normally do things contradictory to what they do.
In the beginning, Romo was a bit of a gunslinger and has been known to throw a stray pass but that's not the Romo that we saw this past season. With the addition of an elite offensive line and more than capable running game, Romo has not had to resort to the gunslinger style of play. This is what Romo is now, more careful with the ball, executes plays with precision. It would be out of character for Romo to make the mistake that Wilson made at the end of the Super Bowl. So I don't think the proposed question is really fair to ask.