Create subqueues in hook_nodequeue_queue_form_submit_finish() instead of hook_nodequeue_subqueues()

nodequeue/help/smartqueue.html recommends to add subqueues in hook_nodequeue_subqueues().

Would it be ok to add subqueues in hook_nodequeue_queue_form_submit_finish() to get the subqueues added at the same time the nodequeue get created? Currently subqueues are created later when clicking at the Nodequeue tab for the first time.