Show metabox for a special role

The Download stats Metabox has a check for view_product_stats capability in EDD codes.
in /easy-digital-downloads/includes/admin/downloads/metabox.php Line:42

if ( current_user_can( 'view_product_stats', get_the_ID() ) ) {
    /** Product Stats */
    add_meta_box(
        'edd_product_stats',
        sprintf( __( '%1$s Stats', 'easy-digital-downloads' ),
        edd_get_label_singular(), edd_get_label_plural() ),
        'edd_render_stats_meta_box',
        $post_type,
        'side',
        'high'
    );
}

You can simply remove the view_product_stats capability for Your special user role.

global $wp_roles;
$wp_roles->remove_cap( 'your_special_role', 'view_product_stats' );