Use jetpack publicize wit RSS Aggreagtor?

I wonder if it would be possible to use publicize with WP RSS Agreggator? Im not publicing my feeds as posts, but publicize has supprt for custom post types, so maybe that could be a way? Im unsure how non-post assign feeds are stored?

This is the action I would have to use:

add_action('init', 'my_custom_init');
function my_custom_init() {
    add_post_type_support( 'product', 'publicize' );
}

Hmm on further investigation, is the post type for feeds wprss_feed_item?

Coukd I use the action directly in Functions, or do i need to register the wprss_feed_item post type?

This is the register post type code for publicize:

// Register Custom Post Type
function custom_post_type() {

    $labels = array(
        'name'                => _x( 'Products', 'Post Type General Name', 'text_domain' ),
    );
    $args = array(
        'label'               => __( 'product', 'text_domain' ),
        'supports'            => array( 'title', 'editor', 'publicize', 'wpcom-markdown' ),
    );
    register_post_type( 'product', $args );

}
// Hook into the 'init' action
add_action( 'init', 'custom_post_type', 0 );
https://wordpress.org/plugins/wp-rss-aggregator/

Sorry if I kinda extended my question beyond normal support..