Drupal 8 / PHP 7 - Thought I could devise a super-generic form of determining if this $form_state form is an entity delete form.

detect-if-drupal-entity-delete-form.php

<?php
  $is_delete_form = FALSE;
  $classes = class_uses($form_state->getFormObject());
  foreach ($classes as $class) {
    if ($class === 'Drupal\Core\Entity\EntityDeleteFormTrait') {
      $is_delete_form = TRUE;
      break;
    }
  }
  if ($is_delete_form) {
    // If ?destination is not already set
    // and entity/bundle is ...
    // and defined view exists...
    // Set redirect to view path.
    $form_state->setRedirect('view.manage_accounts.page_1');
  }
?>
But this doesn't do it. It works for our custom entity which uses the EntityDeleteFormTrait, but looks like Node (`Drupal\node\Form\NodeDeleteForm`) does not.
And our custom entity delete form has a slightly different class name/path.