Some other article said it simpler. If the game launched for free and they focused on microtransactions for skins, they’d be one of the live service games that brings in the money.
I doubt it. When you make a game free to play, only about 5% of your players will ever pay any amount of money, which means your total audience needs to be enormous. I think when they revealed it and looked at metrics like social media and wishlists, they saw the writing on the wall and were just trying to lose less money by charging for it up front.