I do think both were poor. I never said they were equal. How about you compare Tua's rookie season to his fellow rookies? How about you compare his defense to those of the other rookies? How about you compare Tua's rookie season to other top 10 QB's from the past 3 or 4 years. No matter how you break it down, our team won because of defense, not offense. Tua's rookie season was not good enough. The QB needs to elevate his teammmates, and Tua did not. The Dolphins OL, long a horrible OL, was average. Our OL was significantly better than that of Cincinnati and Los Angeles, yet both rookie QB's showed the ability to rise above that and score points. Tua consistently played it safe and had to be bailed out on multiple occasions, so he was spared from taking his lumps except for the final Buffalo game, where he was forced to win a game and failed.
No matter how you analyze it, Tua's 2020 performance was not good enough to hold onto the starting QB job for the next decade. When you draft a QB that high, you not only expect a 10+ year starter, you expect a star. For Tua to reach that level, he must improve. Period.