Relates to MC-172209. Unlike hoglins fleeing away from warped fungi when chasing players, piglins that are chasing players ignore zombified piglins or soul fire, and will not flee.
Piglins will still attack you if soul fire is present
Piglins other AI activities seem to be higher priority than panicking
Piglins don't run from soul fire when attacking the player
Piglins aren't scared of soul fire torches when they are angry at the player
when piglins agro at you , they ignore soul fire , torch etc..
Non-fire resistant mobs don't try to avoid walking into fire
Piglins run from zombified piglins and zoglins when attacking