Map5 symbioids gain critical buffs ?

I've experienced skill syms and science syms in Map5 gaining critical buffs. Is this normal? This seems to be a new thing. I've seen it over the past month but don't remember this happening before then.
I don't have a picture vs the skill sym but it happened today and yesterday

I don't have a picture vs the skill sym but it happened today and yesterday

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So, some skill and science syms gain a critical buff in Map5 if you get hit? Can a mod confirm this?
I hang my head in shame