That's hardly a valid concern. "The elevation of the Fukushima site is approximately 20 feet [6m] above sea level, while Diablo Canyon sits on a bluff 85 feet [26m] above sea level." [Wikipedia]
Furthermore, people seem to ignore one of the very favorable attributes of Diablo Canyon - it was designed to be paired with a large pumped storage facility, so that power generated overnight is available for peak use during the day.
"The Helms Pumped Storage project was designed to be used with the Diablo Canyon Nuclear Power Plant, also owned by PG&E, in the 1970s, when Diablo Canyon was being designed and permitted. It is connected to that power plant by a dedicated high-tension power line." [Wikipedia]
Like Kamala Harris, he would make more sense as a VP nominee (although he would similarly be a bad choice overall). His politics and California provenance would be an albatross around any Presidential candidate's neck, but access to the lucrative California establishment Democrat donor network might outweigh the electoral deadweight.
[1]: https://www.latimes.com/california/story/2020-12-31/question...
> Kinney is well known around the state Capitol as a strategist, ghostwriter of Newsom’s speeches and unofficial fixer summoned to help loosen the governor from political jams. His dual roles as an advisor to Newsom and a lobbyist paid by companies to influence the governor and his staff have raised questions about potential conflicts of interest for the administration.