&gt; Your perception of his company&#x27;s diversity does not change the validity of his point about having a less diverse pool to hire from.<p>It changes how seriously I would take his advice.<p>If someone says &quot;I did X, and without X it would be very hard to do Y.&quot;, you would assume that they actually did Y.  If you later find out that they didn&#x27;t do Y, and further that the people they&#x27;re advising to change their behavior and start doing X are better at Y than they were.. it&#x27;s a sign you might feel free to ignore their advice.