SPOILERS (DO NOT READ IF YOU DON'T WANT TO BE SPOILED):
We did it because we wanted to make room for a sequel. In the original 2012 game, Antoine "moved on" was a perfect ending to his romance route, and we had no intention of continue the Cafe Rouge story. In the 2020 game, we wanted to add plot and story for a sequel where you (MC) confronts the real Isis Black, and this would reveal more of the Michaels'/Blue Bloods diabolical plot. This is why we made this change.