Updating saved metabox values in bulk

I have complex metabox values saved to the database.

Is this still the recommended way of changing those values (the idea my code will differ).

The below is from a post from the Keymaster dated March 2018

function your_helper( $field_id ) {
$field = rwmb_get_field_settings( $field_id );
$value = rwmb_meta( $field_id );
return $value ? $value : $field['std'];
}

// In your template
echo your_helper( 'your_title_field' );