The director of this show is so much confused. Atleast once confirm from authorised sources. Read 10th Canto of Bhagvatam (The final commentary by Vedvyas Ji).
Even the basic names are changed. The son of Jatila was Abhimanyu and daughter was Kutila. Kuch b dikha rhe ho.
I'm just a student but even I know the basic things.
The most basic thing is missing in your understanding. Radha, Krsna and Balram are not demigods(Devta), they are just one God in different actions. Even Brahma is a demigod. Shiva is another expansion of God in a different mode of action.
Have some basic knowledge, your serial is setting the benchmark among Scriptures (it's not Mythology) based TV serials. The presentation is wonderful, but present it right.