Teams can tend to work in their own little silos of development effort and learning. Building their own repositories and solutions to company wide problems. With an easy to use fast method of exposing these silos you can increase collaboration across all your teams. When was the last time the backend team went out to lunch with the frontend?
By allowing searchcode to index across each teams code then each team can learn from each other. "Oh! Thats how Steve solved that problem!".