>>21107431They always remove the swirly eyes when a Pokemon is too edgy/cool to have them. See: Darkrai, Latios, Barry's Empoleon etc.
Honestly I wouldn't mind if they just went with that all the time. It's not like the kids have a hard time figuring out stuff is knocked out without that blatant visual cue since the referee freaking announces it anyway.
Barry's Empoleon fainting while his eyes were still open was metal as fuck.