No, it would have been because they abandoned the OGL and its ecosystem, with all the benefits it provides WotC, and released a version of the game many people rejected.
If you are the center of the universe, then working on shrinking that universe does not benefit you.
The OGL / CC keeps WotC the central fulcrum, Paizo could have created something pretty close to PF without the OGL as well. The OGL benefits WotC at least as much as it benefited Paizo. Thanks to the OGL, WotC can pretend it has ownership of a lot of things it probably would find out it doesn’t, if this ever had to be decided in court. Thanks to the OGL, there is no need to settle this in court however