Absolutely, these "deregulated" markets still need oversight. And there is oversight: look at what happened with JPMorgan manipulating energy markets [0].

My issue is, "deregulation of electricity markets" means "unbundling vertically-integrated utilities", not "removing oversight". This Texas Stock Exchange is about removing oversight.

[0]: https://apnews.com/ferc-jpmorgan-owes-410m-for-price-manipul...