First 3 lines of Twenty Sixteen are:<p>&lt;!DOCTYPE html&gt;
&lt;html lang=&quot;en&quot; class=&quot;no-js&quot;&gt;
&lt;head&gt;<p>I checked back to Twenty Fourteen and didn&#x27;t see the lines you referenced.  Regardless, it&#x27;s a silly argument, the default themes are &quot;reference&quot; themes, meant to show off all the features WordPress offers and of course don&#x27;t represent all WP themes.