SitWoo
I don't know. There are aspects of this that I'm not sure she's capable of, and it doesn't entirely track with what I've seen from her. But I just saw her do something very similar back home. It wasn't malicious, and she didn't seem to realize it at first, but she did hold a town of about 3000 people hostage for about a month. We were still in debriefing when I left, and Wanda disappeared after she took down the magic controlling the town. But if she has something to do with this, she might have taken what she learned from the first attempt and started over.
I don't know about the Greek gods. Maybe she didn't want Thor to be lonely and couldn't remember the rest of the Norse pantheon.
But Tony Stark I might have an answer for. He died. Between 2018 and 2022, about half of the original Avengers team died. Widow, Vision, Iron Man, Captain America. If she still learning to harness her power, maybe she's pulling in the wrong ones. Or maybe some of them aren't who they think they are at all.