The Dislike Between the Mom and the Wife

The wife feels like there's more to it than just the baking right? Why would you be upset? It was just like her dessert was rejected. Maybe I'm reading too much into it but a younger sister may or may not you know may have made a family recipe and maybe mom makes it better. The fact that the only other two rejected ones are both daughters in law does like stink a little to me of you know tension  like this mother in law is hard on her daughters in law or does not like them or is judgy about them i don't know.