Deprecated function used to register widget

Running WordPress v5.1.1 running on PHP 7.2.16. Plugin version 2.2.69
I activated the debug log for my site and noticed these PHP Deprecated warnings:

Function create_function() is deprecated in /path/to/plugins/photo-gallery/photo-gallery.php on line 725
Function create_function() is deprecated in /path/to/plugins/photo-gallery/photo-gallery.php on line 727
Function create_function() is deprecated in /path/to/plugins/photo-gallery/photo-gallery.php on line 729

I suggest this alternative to invoking the register_widget during widgets_init which is compatible with latest PHP engine version:

  require_once(WD_BWG_DIR . '/admin/controllers/BWGControllerWidget.php');
  add_action('widgets_init', function() { return register_widget("BWGControllerWidget"); } );
  require_once(WD_BWG_DIR . '/admin/controllers/BWGControllerWidgetSlideshow.php');
  add_action('widgets_init', function() { return register_widget("BWGControllerWidgetSlideshow"); } );
  require_once(WD_BWG_DIR . '/admin/controllers/BWGControllerWidgetTags.php');
  add_action('widgets_init', function() { return register_widget("BWGControllerWidgetTags"); } );