The guidelines aren't asking you to behave like Pangloss and think everything is perfect. It asks if you do have criticism then address it respectfully and constructively.
There are plenty of examples in the world where bringing up logical, concise, and polite criticism invokes the wrath of a cabal of power-holders and social media demagogues, especially in a world that promotes the postmodern idea of "interpretation, not intent, is reality"