Yeah, because someone with epilepsy never takes suitable precautions when they can feel a fit coming on.
Pull the other one. Literally.
From personal experience, you can tell when it's coming and you have a small window of opportunity to protect yourself. If he didn't take that, and continue playing, then it's his own bloody fault.
Edit: Oh yeah, you can't give blood or drive with epilepsy, so putting him in charge of a plane would be insane.
Second Edit: Epilepsy comes in many forms: Photosensitive, Heat Sensitive, Grand Mal, Petit Mal - it's just Photosensitive Grand Mal is the one most often heard about.