Stuff we've all heard before, but isn't the appeal to a lot of people that FGC is not e-sports? It's interesting to think about, and the FGC is growing, but reaching LoL heights seems unimaginable at this point. I suppose a brand new awesome game (probably a new SF) could help too.
No one in their right mind wants their hobby to have as least amount of people as possible.
But I guess people enjoy watching tournaments on 4G connections for reasons