> "It doesn't surprise me that a massive, powerful, super-conducting electromagnet is capable of doing this. What surprises me is that it is only effecting Apple products"

May I suggest an hypothesis (I would be happy to hear from other people whether this might make sense. I didn't see this possibility mentioned by anyone on the Reddit page) : of course Apple is very secretive about their implementation details, yet as far as I know they are the only consumer brand who implemented Ultra Wide Band at large scale (in a quite innovative way, they can be praised for that !). See https://developer.apple.com/nearby-interaction/

I suspect that UWB implies having an RF receiver and antenna which are "wide open" in terms of frequency selectivity, which means that in the event of a strong RF pulse in the spurious domain, more energy might enter in the device compared to other brands. Maybe that's an explanation why Apple devices (and only those) were burned by an EMP ?