Having followed Apple news for so long, I find it interesting to compare past to present. When the iTunes Music Store was introduced, much of its success was due to Apple's deals with the music labels, and credit for those negotiations went to Steve Jobs.
I wondered whether anyone else, including Tim Cook, would have the magic (reality distortion field) or the clout to get a team of major companies (who compete with each other) on board for a new Apple ecosystem, as Jobs did with iTunes. I think Cook provided the answer with the number of collaborators he has already brought on board for Apple Pay.
I understand your point, but I am weary of the "WWSD?" questions. Having followed Apple news for a long time myself, I find them to be essentially irrelevant, and even worse yet, a distraction from events as they are occurring now. As you imply, Cook has demonstrated the very limited relevance of comparing him to Steve. I believe Cook's leadership (and Apple's culture) can be evaluated without constant reference to Steve. He is gone now. It's time to judge current events in their own light.