How do I make parent taxonomy paths?
This is being worked on, see https://www.drupal.org/node/2493559 and https://www.drupal.org/node/2621598.

In the meantime, you need a bit of custom code to connect the dots. You need to implement hook_token_info()to define a token on nodes for your field with type term. You can also switch the type of the generated field token to term. The second part is a hook_tokens() implementation that forwards [node:yourtokenname:...].

It's similar to what node_tokens() does with node:author:name for example, which forwards the part after author to the user token generation:

if ($term_tokens = $token_service-&gt;findWithPrefix($tokens, 'yourtokenname')) {
  $replacements += $token_service-&gt;generate('term', $term_tokens, array('term' =&gt; $node-&gt;field_yourfieldname-&gt;entity), $options, $bubbleable_metadata);
}