Facebook has played cleverly regarding crypto currencies. At first they banned the ads of crypto currency from facebook so that people doesn't get involve to it. Later on they themselves invented a crypto coin bacause they know how popular they are among people. So, they utilize this popularity and made a Facebook coin. Now, people will choose whether that would go to bitcoin the most popular crytp currency or Facebook currency which is much secured than others. I must say well played Facebook!
I agree- brilliant maneuvering on their part! I suppose the general crypto market would without doubt grow if Facebook did say introduce a Facebook coin, it would just be a shame to see one of the big giants be the ones to make crypto mainstream- and take a lot of the rewards for it.