bw_trace_url_link output doesn't show up in some scenarios

[bobbingwide]

In s.b/officialcaravan the hooks attached to shutdown are as below.

: 0   bw_trace_attached_hooks;9 WC_Cart_Session::maybe_set_cart_cookies;1
: 1   wp_ob_end_flush_all;1
: 10   Automattic\Jetpack\Autoloader\jpf11009ded9fc4592b6a05b61ce272b3c_jetpackâ“¥13_9\al3_1_0\Shutdown_Handler;1 Jetpack::push_stats;1 bw_trace_plugin_loaded_report;1 bw_trace_included_files;1 bw_trace_saved_queries;1 bw_trace_output_buffer;1 bw_trace_functions_traced;1 bw_trace_status_report;1 bw_trace_url_link;1 wc_webhook_execute_queue;1 WC_Post_Data::do_deferred_product_sync;1 WC_Cache_Helper::delete_transients_on_shutdown;1 Closure;1 Automattic\Jetpack\Connection\Package_Version_Tracker::maybe_update_package_versions;1 Yoast_Notification_Center::update_storage;1 WPSEO_Sitemaps_Cache::clear_queued;1 WC_Customer::save;1 WC_Admin_Notices::store_notices;1 ActionScheduler_QueueRunner::maybe_dispatch_async_request;1
: 11   OIK_trace_summary::record_vt;1
: 20   Automattic\WooCommerce\Blocks\Assets\Api::update_script_data_cache;1 WC_Session_Handler::save_data;1
: 99   bw_trace_count_report;1
: 9998   Automattic\Jetpack\Sync\Sender::do_sync;1
: 9999   Automattic\Jetpack\Sync\Sender::do_full_sync;1

bw_trace_url_link is being run, but the output doesn't make it to the browser.
Perhaps it should be added with a higher priority than 10.
That will necessitate a parameter change to bw_trace_add_action().