Yes, Romo did have superior escapability, but if he was better at reading defenses during games on the field, why does Romo have almost double the amount of Interceptions that Dak currently has? Plus, why was Romo never able to throw for more than 2 TDs in any playoff game, never threw for 300 yards in a playoff game either. Romo also never led the Cowboys to an away playoff victory the way Dak did.
Dak has thrown for almost half of the amount of INTs that Romo did. Plus, Dak has thrown for 3+ TDs and 300+ passing yards in a playoff game several times. Dak also helped lead the Cowboys to an away playoff victory against the G.O.A.T. QB in NFL history (Tom Brady), and Dak destroyed those Brady-led Buccaneers playoff team away at Tampa Bay, roughly the same Buccaneers team that had won the Super Bowl only 2 years prior.
So, I agree, Romo had superior escapability, but as for being able to read defenses better, the results sure don't prove it come playoff time.