Is the problem with GM's ads or FB's platform? Ie - What's Ford, Toyota or Hyundai doing with their ad spend on FB? We might be jumping to conclusions a little too quickly here.
what it means: "very happy"?. maybe they like losing money, are careless, or losing $10MM to them is still "being happy". Without conversion rates, or % of awareness arisen, its hard to say whether FB is valuable place to pay for ads.
Ford at least has the recent history of not making monumentally bad decisions that end in bankruptcy. The fact that they find value gives me more to chew on than the fact that GM decides it's wrong, which may say more about GM than the platform.