I'm sorry but Jason was clearly supernatural in the reboot. He was teleporting all over the place. At one point he was on the ground and just minutes later he was on top of the house. At one point he was even randomly inside the house. Not to mention it felt like a CW made for TV movie.

It also makes sense because didn't Billy have Wanda's powers in Westview. Sure they were created by Wanda as was vision but they did have legit powers. There was nothing saying that maybe Billy wasn't capable of casting a spell that kept him from being erased.

However MoM did a great job with the character as well because I feel for her in those moments. I do feel she was still grieving and was possessed by the Darkhold. Not to mention the part where good Wanda walks up you see her clinch her eyes ready to feel the rather but she showed her comion reminding her of her humanity.

I still don't think Wanda was aware this early on of what she did or who she was hurting. Her powers while being useful to fight the avengers in Age of Ultron only really resorted to mind control aspects and not this scale. Next time we saw her she blew up a building a killed innocent people and she was shaken up and then proceeded to hide after Civil War until the events of Infinite War. She came back and the events of Westview happened less then 2 weeks from the blip. All she wanted was to see Vision buried and they wouldn't do that. From their she goes to Westview and finally breaks down and as we saw in Ultron and End Game her powers seem to amplify when she's upset. I don't think she was aware she drug anyone into her spell as she was to self involved at first. In fact she had issues with them asking questions. I don't think it was until the 2nd episode where she realized other people were there but she wasn't sure what she done or how to fix it. I also feel she was honest that she felt she was protecting the people and she would take care of any threat and that giving better homes and jobs justified as making things better for them. It didn't but when she realized how miserable she was making them she let them go. It even look like it took her a minute while telling them I will let you go trying to think of a way to do it.

Not to mention you see Mr. Hart at the end of the episode walk out of the house and tell Vision they'll talk about that promotion tomorrow.

Lastly I think she was still grieving to a point but when she tried to use the Darkhold it exploited that grief and turned her into a monster we saw and that she had a moment of clarity when she saw how she was scaring Billy and Tommy.

I think Wandavision was a good at show her go through the stages but they were rushed. Also it showed how she was tired of hiding and not using her magic which up to the blip I doubt she was doing much of to not be found.