I would say MK can do risky storytelling because they've always done it. Even back in the 90s they were killing off and replacing major characters left and right. Every major MK character (especially those from MK1) has been killed off at least once. By this point MK fans are use to the storytelling nonsense. It doesn't matter because it's probably getting retconned in the next game,anyway. All the shenanigans they bring in are just an excuse to use those characters again.