Mishti didn't mean it obviously but was the scene needed? With Kunal and Pari's bond we all agreed that kunal is a good father, looks like that wasn't enough, they had to show not only Kunal is a good father but Kunal is the only good parent on the show.
It's clear they want to make Mauli's work as a reason for Kunal leaving her now they'll show Mishti has same problems, so Kunal cheating on Mauli wasn't his mistake, it was Mauli's mistake, poor Kunal had to suffer his family's rejection that too because Mauli is a working woman.
If I recall correctly Gajra in BV, showed Anandi a housewife as a better character than Jagya's wife, who was also a doctor, so the writer has some problems with working woman, maybe she thinks women should focus on their household, ghar ki Laxmi bano doctor to Kunal bhi hai
I just feel this scene wasn't needed unless they show Mauli repenting (Middle finger to those who wanted Kunal to repent) not spending time with kunal