It was not a very good decision for Facebook, they just let go of a once in a lifetime offer given by the bitcoin community. This is a very careless step made by them. They did not think of the capabilities the bitcoin has at the same time is the potential it has. If they wanted not to get involved in the scams made by some ICO they should filter it and that is the Thing they can do in able to still have something that can bring the future to its brightest.