This is very intelligent humor, I assure you.
Plot twist: Blanche is Liu Kang's long lost grandma, she is going to be a main character of MK11 and Story Mode will be dedicated to her saving her grandson from the Netherrealm and all his friends. Story Mode will be a beat'em up like Shaolin Monks, with lots secrets easter eggs. Once Blanche reaches the Netherrealm, she will be like "Liu-chan, you were a bad boy, didn't you?", Liu Kang would be like "GRANNY?! I CAN EXPLAIN!", and she is "NO! First things first - introduce me your girlfriend!".