Lying, probably not technically. There probably is a minuscule chance they could cause an issue but I think they are being at least disingenuous about the real reason.
I certainly hope a school would not intentionally use a medical condition as their excuse just to avoid telling parents the truth about why they don't want the shoes in school. Most parents I know would not have an issue if the shoes were banned because they were a distraction in the classroom, there would be no need to make up something especially something as serious as them causeing seizures in the kids with epilepsy. I hope that a school gives the parents of their students more credit than that, if they don't I would think it was the last place I want my impressionable young children 8 hours a day learning from those very people
