Exclude title from display not working
I've not gone in detail of the module code, but from brief overview it seems that module doesn't define any variable at template level. You can check if you're able to access $node-&gt;exclude_node_title variable in template file. If not, then to hide a node title, you can call _exclude_node_title() function which determine whether the node title should be excluded. Check the example usage of _exclude_node_title() function in _exclude_node_title_preprocess() function.

/**
 * Remove the title from the variables array.
 * NOTE : Example usage from module.
 */
function _exclude_node_title_preprocess(&amp;$vars, $node, $view_mode) {
  // If node title needs to be excluded from display.
  if (_exclude_node_title($node, $view_mode)) {
    $vars['title'] = '';
    if ($view_mode == 'nodeform') {
      // Prevent access to the title field on nodeform view mode.
      $vars['page']['content']['system_main']['title']['#access'] = FALSE;
    }
  }
}