I’d take what was said above, but, BUT, for past mutations, we opened a few with underscored people and the tank was taking more damage as the team in general, but the tank is the first one to notice it.
I still think there is a debuff, but can’t find a reliable source other than my own experience.
That’s what I’d like to dispel. I wonder if we are feeling the effects of the individual just doing poor performance as if we ran without them instead.