raw HTML link in status report page

The status report page shows the link in the message from this module with raw HTML.

Furthermore, the text isn't correctly created -- sentence text should not be split into t() calls:

          'Some jobs are behind their schedule. Please check if @link is running properly.', array(
          '@link' => \Drupal::l(t('Cron'), Url::fromRoute('system.cron', ['key' => \Drupal::state()->get('system.cron_key')])),
        ));

The A element should be within the original string, and the url inserted with a placeholder, not the link.