Yeah, just a symbol until your deceased partner's family tries to take your house. Just a symbol until you realize you can't sponsor your foreign partner for immigration because the government doesn't recognize your relationship.
Those legal protections around property are the whole point of the law recognizing marriage.
I encountered this issue too. An overpass near me was demolished but Google Maps was still showing it there. I submitted an edit and included a link to the state DOT's website about the project that clearly stated the overpass would be permanently demolished and not replaced. My edit was rejected.