Try another wording

Author: mfreed7

source

@@ -126130,20 +126130,21 @@ document.body.appendChild(text);
      attribute, then let <var>declarative shadow delegates focus</var> be true. Otherwise let
      it be false.</p></li>
 
-     <li><p>If <var>declarative shadow host element</var> is not a <span>shadow host</span>,
-     then <span data-x="concept-attach-a-shadow-root">attach a shadow root</span> with
-     <var>declarative shadow host element</var>, <var>declarative shadow mode</var>, true,
-     <var>declarative shadow delegates focus</var>, and "<code data-x="">named</code>".
-     If an exception is thrown, then catch it and <span>report the exception</span>.</p></li>
-
-     <li><p>If an exception was thrown by <span data-x="concept-attach-a-shadow-root">attach a
-     shadow root</span>, or if <var>declarative shadow host element</var> was already a
-     <span>shadow host</span>, then
-     <span>Insert an element at the adjusted insertion location</span> with
-     <var>template</var>.</p></li>
+     <li><p>Let <var>should attach shadow root</var> be true.</p></li>
+
+     <li><p>If <var>declarative shadow host element</var> is a <span>shadow host</span>, then
+     <span>insert an element at the adjusted insertion location</span> with
+     <var>template</var>, and set <var>should attach shadow root</var> to false.</p></li>
+
+     <li><p>Otherwise, <span data-x="concept-attach-a-shadow-root">attach a shadow root</span>
+     with <var>declarative shadow host element</var>, <var>declarative shadow mode</var>,
+     true, <var>declarative shadow delegates focus</var>, and "<code data-x="">named</code>".
+     If an exception is thrown, then catch it, <span>report the exception</span>,
+     <span>insert an element at the adjusted insertion location</span> with
+     <var>template</var>, and set <var>should attach shadow root</var> to false.</p></li>
 
      <li>
-      <p>Otherwise:</p>
+      <p>If <var>should attach shadow root</var>, then:</p>
 
       <ol>
        <li><p>Let <var>shadow</var> be <var>declarative shadow host element</var>'s