The icon can cause some specific emotions, experiences, but this is not its purpose. The text is rather about non-depicting emotions on the faces of saints, who are depicted on the icons transfigured, in a prayer state, while the experience of emotions is rather an “earthly” property of a person.
Morever, emotion is subjective, it does not convey reality objectively, truly, not biased. It conveys the point of view of a certain person. However God is certainly not comprehensible and He is certainly impossible to describe or measure.

By this, do you mean that the icon is not made with the intention to evoke an emotional response? I certainly have been moved by icons before, though I understand the ideology behind them, particularly why those depicted saints look unmoved emotionally.

You are so welcome, Father Lawrence! Thank you for your high appreciation!