The Oscars are a celebration of the year’s best movies and all the performances and craft work that power them, including original songs, as you well know after watching Ryan Gosling’s “I’m Just Ken” pink extravaganza 30 (let’s be honest, 50) times since Sunday night. As with all things, however, there are limits on how many films, performances, and songs get the honor of being nominated. A number far short of how many works deserve said honor.