For me, it is not about catching errors, it is about documentation.
In the codebase I work on most, all variables that can be marked final are marked final. That means that whenever I see a non-final variable, I know that something tricky is happening and I need to be extra careful in reading the code.
In the codebase I work on most, all variables that can be marked final are marked final. That means that whenever I see a non-final variable, I know that something tricky is happening and I need to be extra careful in reading the code.