You are right, but that metric is even more meaningless.

Fox New Headline ”Immigration crisis confirmed as 70,000 illegals pass into USA in Feburary - CBP”

Guess what? People on the left and right both ‘ANGRY’ that for different reasons.

I think the point here is that the Angry reaction is a signifier of divisive content. Divisiveness gets people talking, so the metrics look good even though the discourse is unhealthy and tearing society apart on both sides.