If the fighting game community is known for anything, it is the individuality and the loyalty to home state. It is an appreciated feature of the community and one that sets it apart from many other gaming communities. Also, fighting games are a great way to handle grudges, and so, over the years, individuals, groups of people, and even states, have settled differences over a fighting game.
Mortal Kombat 1 with all its gore and brutality, is a perfect game to 'kill' the opposition, so this might go some way in explaining why we already have grudge matches for the game. Not long ago, there was one between Sikander and ImStillDaDaddy. Now the whole of Florida and Texas (who have a rivalry of their own) have teamed up to fight against the Tri State area (New York, New Jersey, and Connecticut) in Mortal Kombat 1.
This was confirmed by Kitana Prime, one of the veterans of the Mortal Kombat scene, who tweeted at Splash, another veteran of the scene and offered the battle.