While the time and cost overruns are regrettable, it’s likely a welcome conclusion considering the Russian gas situation and the desire to phase out the last of their coal generation, which was bumped from the end of this year to 2027 in September 2023 by Macron.
Hinckley Point C startup date was pushed back to 2029 unfortunately. With that said, if it can get done, that is a substantial amount of energy that can offset current UK fossil gas consumption.
https://app.electricitymaps.com/zone/FR