The scores aimed to predict a property’s risk from a fires, floods and storms, but some in the real estate industry as well as homeowners have called them inaccurate.
Other services, notably Redfin, still use the First Street scores. IMHO, they’re decent at a community level, but the property-to-property differences in the First Street scores are not particularly accurate

No one is “safe” but there’s clearly a difference at a macro level of different regions. House to house isn’t a difference, but with so many people working full-remote, people are able to choose which cities they live in, so that comparative data is still useful.