I enjoyed the miniseries, Olsen and Bettany turned in excellent performances.
This was the takeaway I had as well.
They seem to have turned Wanda into a character who, while not a total villain, is probably too dangerous to civilians to be allowed freedom, at least not until she gets some professional help and I'm afraid the writers didn't see this. Wanda has powers she doesn't fully understand or control, and, when her grief over the loss of the Vision got the best of her, she kidnapped and tortured civilians. What's more, once she realized she had harmed real people, she did not immediately release them. What will happen the next time that Wanda endures terrible emotional pain or can't handle her powers?
I could see Wanda eventually acquiring mastery of her powers, and getting coping mechanisms for her sorrow that don't include kidnapping people and messing up their minds. But I'm somewhat annoyed that the MCU is okay with Wanda's being off on her own, with no consequences for what she did to the helpless people she forced to occupy her fantasy.
All in all it was a great series and I enjoyed it.