Hello. I'm going through the game right now and I highly recommend you do something about the flashing lights post haste. My eyes suffer from photophobia and I'm susceptible enough that I had to look away from the screen for a couple of seconds, so I cannot imagine what would happen to a player with a more serious condition.
You could put out a tiny update with a warning, a toggle in the Prefs menu or simply removing the flashes. Again, I suggest you address it soon.