How to assign default taxonomy to pages on 'save_post'?

Question

I try to assign custom taxonomies to a page when newly added by the "publish" button.

This is the function:

function set_default_object_terms( $id, $post ) {
if ( 'publish' === $post->post_status ) {

    log_me ('From inside function: '.__FUNCTION__.', while I pressed the "publish" button. Post-ID: '.$id);

    $taxonomy_ar = get_terms( 'property-features', '' );

    foreach ($taxonomy_ar as $taxonomy_term) {          
        log_me ('Inside the function: '.__FUNCTION__.' and inside the "foreach"-loop for the ID: '.$id.' and Term: '. $taxonomy_term->name . ' and Post-ID :'. $post->ID);
        wp_set_object_terms( $post->ID, $taxonomy_ar, $taxonomy_term->name, true );  
    }
}}

and here is the hook:

add_action( 'save_post', 'set_default_object_terms', 100, 2 );

In the logfile which i added to figure out if i find all my values, all my custom taxonomies get found:

[13-May-12 16:28] be in function while "publish" is pressed with this id: **64**
[13-May-12 16:28] In the "foreach" with id: 64 and Term: **Kitchen** and Post-ID :**64**
[13-May-12 16:28] In the "foreach" with id: 64 and Term: **Stove** and Post-ID :**64**
[13-May-12 16:28] In the "foreach" with id: 64 and Term: **Pets ok** and Post-ID :**64**

But it does not assign it. Does somebody know where the trick is?