Though I no longer have epilepsy, I had it in the past (begnine childhood partial epilepsy) so maybe I can chime in.
I generally didn’t feel an issue most time, only when tired with an ultra powerful ZPQ title did I feel the pressure one feels when a seizure is incoming (yesterday to be precise, it happened once)
So it is possible if he push a title too fast too far that it might trigger a seizure due to the cheer amount of brain activity generated when in recon, processing huge amount of subliminal data. (My dream last night was like an ocean of text swirling slowly around me in white space)
So if he tries, I’d highly advise to be careful with recon management, and to follow the listening recommendations. Since the only time when I felt something seizure-like was when experiencing recon and tired. (From doing something not recommended, listening to terminus squared as a newbie lol)