You had better check on how you are using the term.
It is my thoughts and my actions being in conflict. If my thoughts are that Marner is a good but not great player, and my actions are that I post that, there is no conflict, and no "cognitive dissonance".
If I ignore facts, that is ignoring facts, not cognitive dissonance.
If, for example, someone looks at all the evidence and believes that acquiring Tavares was a bad idea, but continues to post that it was a brilliant move, they are experiencing cognitive dissonance.
By the way, I am not ignoring facts - at most I am looking at them from a different viewpoint, and in fact I am looking at them in a greater context, and thereby arriving at a different conclusion. I'm not saying mpy conclusions are any better or worse than yours, just different.
But there is no cognitive dissonance.