Sorry, I would follow-up with the school. If they want to say it's a distraction, that's fine, but I don't believe it's because of seizures. I have to admit, I'm so sick and tired of the PC world and everyone being special and having special circumstances. So if there is a child who has issues, do they never watch TV in the dark, go to movies, drive in a car because a blinking traffic light could trigger a seizure? I'm also assuming they never play video games or go to Disney because we all know how many different strobes/lights, etc. there are there. I'm just incredulous at how people think the world is going to remove all the obstacles from their lives.
What are we teaching our children? Even if you can remove all these obstacles on a school level, do you think an office is going to change all their lightbulbs for you? Or you'll never ride in a car at night because of the flashing headlights as you drive by? I know I'm obviously a heartless, mean, nasty person, but enough already.

And we wonder why everyone is a snowflake with thier own special set of circumstances.