MY POV
I often wondered what made DKDM a different mytho series. I realised that it focused more on the personal life of the protagonist deity, rather than focusing whether he superior or not. We cannot view this as a typical mythological and compare with any other serial where the perspective is completely different.
Secondly, the show focuses more on the point of view of Shiva and his philosophy that he implements in his day to day life and the way he behaves with his family members and the way he fulfills his responsibilities. Same goes for Parvati as well. Whatever the CVs show, they tend to give it a personalised touch so as keep up the uniqueness of the show.
Regarding the 'Bhool' thing, the CVs often tend to tell and show sumthing different in the promo and the real episode turns out to be better (sumtimes worst as well)... I am actually waiting to hear both the sides before jumping onto the conclusion that whether the character of Parvati has been degraded or not {blame on my law course, we follow audi altrem partem i.e. hearing both the sides, a principle of natural justice😊 }