Bricksbuilder not in filter

/*
* Try to change  IN from a specivic Filter to NOT IN over Query_vars Bricks filter.
* 
*/

add_filter( 'bricks/query_filters/filter_query_vars', function( $query_vars, $filter, $query_id, $index ){
    $filter_id = $filter['filter_id'] ?? '';

    $allowed_filters = array( 'opuozx', 'nbhbmt'); //Bricks Widget Filter ID'S (Array)

    if( !in_array( $filter_id, $allowed_filters, true ) ) {
        return $query_vars;
    }

    // Add 'NOT_IN' to the tax_query
    if ( isset( $query_vars['tax_query'] ) && is_array( $query_vars['tax_query'] ) ) {
        $query_vars['tax_query'][0]['operator'] = 'NOT IN';

        $new_tax_query = $query_vars['tax_query'];

        if ( isset( \Bricks\Query_Filters::$active_filters[ $query_id ][ $index ] ) ) {
            \Bricks\Query_Filters::$active_filters[ $query_id ][ $index ]['query_vars'] = $new_tax_query ;
        }
    }
    
    return $query_vars;
}, 50, 4);