I think we learned all we had to. We know Conor can still start very fast, has great fight IQ and can finish guys early still. Many here thought the days of quick finishes were over and he lost his killer timing, but he seems to have found it. We also learned he can finish larger men, that he found ways to manage the clinch, and, he can also finish fights with any limb; he already had an elbow finish, but this fight showcased shoulders, head kicks and knee. Previously, he would pull some flashy low percentage capoeira kick.
No, we didn't get to see him in a war or how his cardio was, but the answers we wanted we received. Cowboy is the golden litmus test in quality and gauging where a fighter is. Only contenders and champions beat him and he weeds out the pretenders like Aluminum Can Perry.