possibly, just possibly, nothing personal, just someone trying to fit an intended 
(pure plain disagreement) with the available choices? and just possibly, getting slightly upset with the fact that we still can’t purely disagree, we are expected to either agree, or react emotionally.
I’d blame the governance team defining the available reactions, refusing to acknowledge the expressed need, not the person who used that specific reaction.
try to disagree with me, and choose a reaction to show that.