Okay I posted this a while ago and didnt think I was right, but now I know I am, and have evidence.
The Wind Serpent pets Lightning Breath has an innate critical strike chance of 0%. I have tested this extensively and have recount data to show it. When you put points into Ferocity, it does crit, but if there’s not points in ferocity it doesn’t.
I dont think this is the intended functionality.
Character name Tormentum-Mankrik