why wouldnt they be eligible?   You dont have to have suffered a disaster loss to have the extended due date.

https://www.caltax.com/news/flash-email/2023-15-october-16-disaster-extension-faqs/#:~:text=For%20fe....

Any taxpayer who resides in, or whose principal place of business is located in, any of the affected California counties is granted an automatic extension of time to file and pay most types of federal and California tax obligations until October 16, 2023. These taxpayers do not have to be directly affected by the storms.