It's just another witch coven show!
Does that even fit into the MCU? I doubt it. Maybe if she had been a DC character (DC is more known for including magic-using characters than Marvel) and interacted with the superheroes from that, but frankly, it's not gonna work out, and will bomb badly.
Nobody asked for this, and honestly, I have a feeling the only reason the studio was stupid enough to make it was because the ugly actress playing her was desperate for a starring role and had more powerful friends campaign for it.
People would be better off watching stuff like "Charmed," "Sabrina the Teenage Witch," or even "Buffy." Those shows had far better witch-related stuff in them than this garbage.