set_query_var on parse_query is not setting custom values

I’m stuck on this code. I’m trying to modify the loop on ‘Historias’ archives ( post type ) to display only pets with pet_owner_id from the current user logged-in

I’ve tried putting this code on my plugin, but it’s doesn’t work, dumping ‘$query’ displays meta_query as false

[“meta_query”]=>
bool(false)

add_filter('parse_query', 'mr_query_filter_by_petowner');

function mr_query_filter_by_petowner(  $query  )
{
	global $pagenow, $post_type;

       if (!is_admin() && is_archive() && ('historias' == $post_type) )
	   {

			if(function_exists('set_query_var')){
				set_query_var( 'meta_query', array( array( 'key' => 'pet_owner_id', 'value' => '1' ) ) );
			}else{
				$query->set( 'meta_key', 'pet_owner_id' );
				$query->set( 'meta_value', '1' );
			}
			return $query;
			//var_dump($query);
       }
}

but when I do this on my archive-historias.php file before the ‘Loop’

$a = array(
							'meta_query' => array(
													array(
														'key' => 'pet_owner_id',
														'value' => '2',
														'compare' => '='
													)
												)
						);
		global $wp_query;
		$args = array_merge( $wp_query->query, $a );

		query_posts($args );

it works fine, what is wrong with my code? any bug or it’s me?
I don’t want to break my code on my template to keep everything clean