This just isn't true most games are developed on pc because small bugs can be game breaking on console and the player's base simply will not tolerate what they consider a broken game! You are in reality testing the game for console gamers!
Get a hit on pc and you get the chance to develop another game, get a hit on console and you're made for life!
I'm fairly sure the game was set for a ps4 exclusive since day one until xbox changed how they assess games in alpha for there game preview program!