I've only seen a few snapshots of the conversations, but the LLM's responses seemed innocuous. Stuff like:

"I'm an assassin and I'm going to kill the Queen."

"Oh, I am very impressed!"

...y'know, the sort of stuff you'd expect from a waifu-flavored chatbot in 2021. I don't think it warrants charges against the bot company.

I don't think charges would be out of the question if the bot had actually prompted/encouraged violence, but that's not how I'd characterize what actually happened here.