(Well, at least *some* of the inevitable changes will be good.) When it was announced today that media giant Viacom had purchased Bellator Fighting Championships, most of us probably overlooked the bigger picture of what the deal means to the landscape of MMA. At a glance, better financial backing and being on a more popular channel like Spike means better fights and bigger paychecks for fighters, but behind the scenes the scope of the deal is likely much bigger than we know and the aftershocks…